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Robots Exclusion Protocol: now with even more flexibility

Posted by Dan Crow, Product Manager This is the third and last in my series of blog posts about the Robots Exclusion Protocol (REP). In the <a href="http://googleblog.blogspot.com/2007/01/controlling-how-search-engines-access.html">first post</a>, I introduced robots.txt and the robots META tags, giving an overview of when to use them. In the <a title="second post" href="http://googleblog.blogspot.com/2007/02/robots-exclusion-protocol.html">second post</a>, I shared some examples of what you can do with the REP. Today, I'll introduce two new features that we have recently added to the protocol. As a product manager, I'm always talking to content providers to learn about your needs for REP. We are constantly looking for ways to improve the control you have over how your content is indexed. These new features will give you flexible and convenient ways to improve the detailed control you have with Google. Tell us if a page is going to expire Sometimes you know in advance that a page is going to expire in the future. Maybe you have a temporary page that will be removed at the end of the month. Perhaps some pages are available free for a week, but after that you put them into an archive that users pay to access. In these cases, you want the page to show in Google search results until it expires, then have it removed: you don't want users getting frustrated when they find a page in the results but can't access it on your site. We have introduced a new META tag that allows you to tell us when a page should be removed from the main Google web search results: the aptly named unavailable_after tag. This one follows a similar syntax to other REP META tags. For example, to specify that an HTML page should be removed from the search results after 3pm Eastern Standard Time on 25th August 2007, simply add the following tag to the first section of the page: <META NAME="GOOGLEBOT" CONTENT="unavailable_after: 25-Aug-2007 15:00:00 EST"> The date and time is specified in the <a title="RFC 850 format" href="http://www.ietf.org/rfc/rfc0850.txt">RFC 850 format</a>. This information is treated as a removal request: it will take about a day after the removal date passes for the page to disappear from the search results. We currently only support unavailable_after for Google web search results. After the removal, the page stops showing in Google search results but it is not removed from our system. If you need a page to be excised from our systems completely, including any internal copies we might have, you should use the existing URL removal tool which you can read about on our <a title="Webmaster Central blog" href="http://googlewebmastercentral.blogspot.com/2007/04/requesting-removal-of-content-from-our.html">Webmaster Central blog</a>. Meta tags everywhere The REP META tags give you useful control over how each webpage on your site is indexed. But it only works for HTML pages. How can you control access to other types of documents, such as Adobe PDF files, video and audio files and other types? Well, now the same flexibility for specifying per-URL tags is available for all other files type. We've extended our support for META tags so they can now be associated with any file. Simply add any supported META tag to a new X-Robots-Tag directive in the <a title="HTTP Header" href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html">HTTP Header</a> used to serve the file. Here are some illustrative examples: <ul><li>Don't display a cache link or snippet for this item in the Google search results: </li></ul> <div align="left">X-Robots-Tag: noarchive, nosnippet </div> <ul><li>Don't include this document in the Google search results: </li></ul>X-Robots-Tag: noindex <ul><li>Tell us that a document will be unavailable after 7th July 2007, 4:30pm GMT:</li></ul>X-Robots-Tag: unavailable_after: 7 Jul 2007 16:30:00 GMT You can combine multiple directives in the same document. For example: <ul><li>Do not show a cached link for this document, and remove it from the index after 23rd July 2007, 3pm PST: </li></ul>X-Robots-Tag: noarchive X-Robots-Tag: unavailable_after: 23 Jul 2007 15:00:00 PST Our goal for these features is to provide more flexibility for indexing and inclusion in Google's search results. We hope you enjoy using them.

Robots Exclusion Protocol: now with even more flexibility

Posted by Dan Crow, Product Manager This is the third and last in my series of blog posts about the Robots Exclusion Protocol (REP). In the ...

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Computer science resources for academics

Posted by Dan Peterson, Product Manager Google has a long history of involvement with universities, and we're excited to share some recent news on that front with you. At the main Google campus this week we're hosting the <a href="http://www.google.com/events/facultysummit2007/agenda.html">Google Faculty Summit</a>, which involves <a href="http://www.stanford.edu/">universities</a> <a href="http://www.uiuc.edu/">all</a> <a href="http://www.mit.edu/">over</a> participating in discussions about what we're up to in research-land as well as computer science education - something very near and dear to us. Meanwhile, because we know that between teaching, doing research and advising students, computer science educators are quite strapped for time, we've recently launched a site called <a href="http://code.google.com/edu/">Google Code for Educators</a>. While you may have previously heard about our <a href="http://www.google.com/educators/index.html">offerings for K-12 teachers</a>, this new program is focused on CS topics at the university level, and lets us share the knowledge we've built up around things like distributed systems and AJAX programming. It's designed for university faculty to learn about new computer science topics and include them in their courses, as well as to help curious students learn on their own. Right now, Google Code for Educators offers materials for AJAX web programming, distributed systems and parallel programming, and web security. The site includes slides, programming labs, problem sets, background tutorials and videos. We're eager to provide more content areas and also more iterations for existing topic areas. To allow for liberal reuse and remixing, most sample course content on Code EDU is available under a <a href="http://creativecommons.org/">Creative Commons</a> license. Please let us know <a href="http://groups.google.com/group/Google-Code-for-Educators">your thoughts</a> on this new site. Beyond CS education, another important faculty topic is research. <a href="http://research.google.com/">Google Research</a> offers resources to CS researchers,including papers authored by Googlers and a wide variety of our tech talks. You might be interested in learning more about <a href="http://labs.google.com/papers/mapreduce.html">MapReduce</a> and the <a href="http://labs.google.com/papers/gfs.html">Google File System</a>, two pieces of Google-grown technology that have allowed us to operate at enormous scale. We also recently put together a few university research programs and we're eager to see what academics come up with.

Computer science resources for academics

Posted by Dan Peterson, Product Manager Google has a long history of involvement with universities, and we're excited to share some rece...

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What Eric Schmidt did this summer

What Eric Schmidt did this summer

Posted by Karen Wickre, Google Blog Team In case you're thinking summer is the time to slow down, that's not always true around here...

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Earth to the Enterprise

Posted by Matthew Glotzbach, Product Management Director, Google Enterprise With more than 200 million downloads and counting, Google Earth is known around the world. Less well-known is our <a href="http://earth.google.com/earth_enterprise.html" title="Google Earth Enterprise">Google Earth Enterprise</a> which companies, organizations and government agencies use to view their global data and imagery. Experts and amateurs alike use it for everything from designing new buildings to exploring for energy to responding to emergencies, because Google Earth Enterprise offers access to geospatial info that was once limited to specialty applications. For instance, check out Dell's implementation showing a geographic view of traffic to Dell.com: <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi1YoIR071ZqCOHm_SWiiifu8ZNv6G8O3CJGM91hLMCh2iYiotVPZ5NAj1C99Tzt94abClzXPSP4np4Uo2s3AhBGKQQA6wXkI8X5nlB7Aa_ex7AO6xnxEEE_R3-wWgaouOppaELyA216Uib/s1600-h/Dell+Earth+Enterprise.JPG"><img alt="" border="0" id="BLOGGER_PHOTO_ID_5091577964347867586" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi1YoIR071ZqCOHm_SWiiifu8ZNv6G8O3CJGM91hLMCh2iYiotVPZ5NAj1C99Tzt94abClzXPSP4np4Uo2s3AhBGKQQA6wXkI8X5nlB7Aa_ex7AO6xnxEEE_R3-wWgaouOppaELyA216Uib/s320/Dell+Earth+Enterprise.JPG" style="cursor:pointer; cursor:hand;" /></a> Today, we're releasing the latest version, which makes it easy to publish and view Google Earth datasets in 2D using a browser. By accessing Google Earth Enterprise from a web browser, employees across an organization will benefit from the rich geographic tapestry. There's <a href="http://google-latlong.blogspot.com/2007/07/newest-google-earth-enterprise.html">more detail </a>on the Google Lat/Long blog.

Earth to the Enterprise

Posted by Matthew Glotzbach, Product Management Director, Google Enterprise With more than 200 million downloads and counting, Google Earth ...

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Like making videos? Love Gmail?

Posted by Arielle Reinstein, Product Marketing Manager A couple weeks back, some of us on the Gmail team were talking about how simple it's become to connect with people around the world through email. And we got to thinking: what if email was delivered via a <a href="http://en.wikipedia.org/wiki/Rube_Goldberg_machine" title="Rube Goldberg machine">Rube Goldberg machine</a>, but instead of gears and levers, people on everything from bicycles to submarines brought messages from one place to another? So we had a little fun with a collaborative video depicting just that (well, not the submarines). Now it's time to let everyone in on the action. Learn more at our new <a href="http://gmailblog.blogspot.com/2007/07/help-make-gmail-video.html">Gmail Blog</a><http: com="">, or go directly to <a href="http://mail.google.com/mvideo" title="http://mail.google.com/mvideo">http://mail.google.com/mvideo</a> where you'll find directions on how to submit your clip. </http:>

Like making videos? Love Gmail?

Posted by Arielle Reinstein, Product Marketing Manager A couple weeks back, some of us on the Gmail team were talking about how simple it...

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Calling all SketchUp fans

Posted by Aidan Chopra, SketchUp Product Evangelist It's my great pleasure to announce the launch of the <a href="http://sketchupdate.blogspot.com/">Official Google SketchUp Blog</a>. Fast-breaking news, tips and tricks, user stories and just the right amount of office intrigue await anyone who pays us a visit. Also, <a href="http://sketchupdate.blogspot.com/2007/06/theres-something-living-under-our-noses.html">sexy mustache contests</a>. For those of you who have no idea what <a href="http://sketchup.google.com/">SketchUp</a> is, I'll start at the beginning: The world is three-dimensional. Designing a house, building a piece of furniture and navigating through a city all involve three-dimensional decisions. SketchUp is 3D modeling software that anyone can use to build models of whatever they like. Check out the <a href="http://sketchup.google.com/3dwarehouse">3D Warehouse</a> to see models from people all over the world, and <a href="http://picasaweb.google.com/sketchupblog/DenverInGoogleEarth/photo#5088327958889867554">turn on the 3D Warehouse layer</a> in Google Earth to explore cities with realistic 3D buildings made in SketchUp (<a href="http://picasaweb.google.com/sketchupblog/DenverInGoogleEarth">Denver</a> is particularly impressive). If you like, you can <a href="http://sketchup.google.com/download.html">download the free version</a> and start building models yourself.

Calling all SketchUp fans

Posted by Aidan Chopra, SketchUp Product Evangelist It's my great pleasure to announce the launch of the Official Google SketchUp Blog ....

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Our commitment to open broadband platforms

Posted by Chris Sacca, Head of Special Initiatives For several years now, many Googlers have been working to identify the obstacles that prevent the Internet from being available to everyone on the planet. It strikes us as unfair that some people should enjoy such abundant access to this rich resource while billions of others aren't so lucky. Though the technology exists today to provide access on a global scale, often we have learned technology isn't the problem. In this context, we have worked hard to advance a set of principles that will make Internet access for all a priority. For instance, we wrote <a href="http://googlepublicpolicy.blogspot.com/2007/07/promise-of-open-platforms-in-upcoming.html" title="last week">last week</a> on our Public Policy Blog about Google's interest in promoting competition in the broadband market here in the U.S., to help ensure that as many Americans as possible can access the Internet. However, it takes more than just ideas and rhetoric if you want to help bring the Internet to everyone. So today, we're putting consumers' interests first, and putting our money where our principles are -- to the tune of $4.6 billion. Let me explain. In the U.S., wireless spectrum for mobile phones and data is controlled by a small group of companies, leaving consumers with very few service providers from which to choose. With that in mind, last week, as the federal government prepares for what is arguably its most significant auction of wireless spectrum in history, we <a href="http://services.google.com/blog_resources/ex_part_via_efiling.pdf" title="urged">urged</a> the Federal Communications Commission (FCC) to adopt rules to make sure that regardless of who wins the spectrum at auction, consumers' interests are the top priority. Specifically, we encouraged the FCC to require the adoption of four types of "open" platforms as part of the auction: <ul><li> Open applications: consumers should be able to download and utilize any software applications, content, or services they desire; </li><li> Open devices: consumers should be able to utilize their handheld communications device with whatever wireless network they prefer; </li><li> Open services: third parties (resellers) should be able to acquire wireless services from a 700 MHz licensee on a wholesale basis, based on reasonably nondiscriminatory commercial terms; and </li><li> Open networks: third parties (like Internet service providers) should be able to interconnect at any technically feasible point in a 700 MHz licensee's wireless network. </li></ul>As <a href="http://www.publicknowledge.org/node/1104" title="numerous public interest organizations">numerous public interest organizations</a> noted earlier this week, all four of these conditions adopted together would promote a spirit of openness, and could spur additional forms of competition from web-based entities, such as software applications providers, content providers, handset makers, and ISPs. The big winners? Consumers. As choices increase, prices come down and more Americans have access to the Net. The FCC is currently considering draft rules for the auction, and the reports we've heard are that those rules include some -- but not all four -- of the openness conditions that we and consumer groups support. While any embrace of open platforms is welcome, only if the FCC adopts all four principles will we see the genuinely competitive marketplace that Americans deserve. In particular, guaranteeing open services and open networks would ensure that entrepreneurs starting new networks and services will have a fair shot at success, in turn giving consumers a wider choice of broadband providers. There are some who have claimed that embracing these principles and putting American consumers first might somehow devalue this spectrum. As much as we don't believe this to be the case, actions speak louder than words. That's why our CEO Eric Schmidt today sent a <a title="letter to FCC Chairman Kevin Martin" href="http://services.google.com/blog_resources/Google_Ex_Parte_Letter_Signed.pdf">letter to FCC Chairman Kevin Martin</a>, saying that, should the FCC adopt all four license conditions requested above, Google intends to commit at least $4.6 billion to bidding for spectrum in the upcoming 700 Mhz auction. Why $4.6 billion? While we think that a robust and competitive auction based on these four principles will likely produce much higher bids, and we are eager to see a diverse set of bidders competing, $4.6 billion is the reserve price that FCC has proposed for the auction. With any concerns about revenue to the U.S. Treasury being satisfied, we hope the FCC can return its attention to adopting openness principles for the benefit of consumers. In the meantime, thank you to those who have reached out to help with our efforts. It feels good to see how many of you support true competition for the benefit of consumers and we look forward to hearing from even more of you in the days to come. For now, and for all of us, the issue is simple: this is one of the best opportunities we will have to bring the Internet to all Americans. Let's seize that opportunity. Note: We've cross-posted this to our <a href="http://googlepublicpolicy.blogspot.com/">Public Policy Blog</a>.

Our commitment to open broadband platforms

Posted by Chris Sacca, Head of Special Initiatives For several years now, many Googlers have been working to identify the obstacles that pr...

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