The art of a homepage

Last week, we announced a new feature that lets you add a favorite photo or image to the background of your Google.com homepage.

To provide you with an extra bit of inspiration, we‘ve collaborated with several well-known artists, sculptors and photographers to create a gallery of background images you can use to personalize your Google homepage. Included in the collection are photographs of the works of Dale Chihuly, Jeff Koons, Tom Otterness, Polly Apfelbaum, Kengo Kuma (隈研吾), Kwon, Ki-soo (권기수) and Tord Boontje, as well as some incredible photos from Yann Arthus-Bertrand and National Geographic. We’ll be featuring these images as backgrounds on the Google homepage over the next 24 hours.

Of course, since we want your Google homepage to be personal to you, you can still choose an image or photo from your computer or your own Picasa Web Album. Whether you select an image from our new artist collection or prefer to have a more personal touch on your homepage, you’ll still enjoy the speed and ease of use that you’ve come to expect from Google.

We’re also excited to announce that this feature is now available internationally. We hope you enjoy the new artist collection and making Google feel more like your own!

Google Web Alerts No Longer Available

Google will no longer offer alerts for web search results and will replace them with comprehensive alerts that include results from Google Web Search, Google News and Blog Search. Marcel Gordon, Product Manager for Google Alerts, says that web alerts weren't very popular.

"We've decided to retire Web alerts because they are used by very few people and an alert of type Everything will find the same results. This week we'll be changing all alerts of type Web into alerts of type Everything. You may receive more results after this change. If you find that you are getting too many results, you can change the "How often" setting to "once a day" or "once a week." You can also change your search query. You can do this on the alerts management page, or by removing the alert using the link at the bottom of each alert email and creating it again with different settings."

Maybe Google should discontinue Google Alerts and provide regular feeds for search results. Right now, you can create feeds for web search results using Google Alerts, but they have URLs that can't be generated automatically. Google News, Blog Search, and Google Video already offer feeds for search results.

Our new search index: Caffeine

Today, we're announcing the completion of a new web indexing system called Caffeine. Caffeine provides 50 percent fresher results for web searches than our last index, and it's the largest collection of web content we've offered. Whether it's a news story, a blog or a forum post, you can now find links to relevant content much sooner after it is published than was possible ever before.

Some background for those of you who don't build search engines for a living like us: when you search Google, you're not searching the live web. Instead you're searching Google's index of the web which, like the list in the back of a book, helps you pinpoint exactly the information you need. (Here's a good explanation of how it all works.)

So why did we build a new search indexing system? Content on the web is blossoming. It's growing not just in size and numbers but with the advent of video, images, news and real-time updates, the average webpage is richer and more complex. In addition, people's expectations for search are higher than they used to be. Searchers want to find the latest relevant content and publishers expect to be found the instant they publish.

To keep up with the evolution of the web and to meet rising user expectations, we've built Caffeine. The image below illustrates how our old indexing system worked compared to Caffeine:

Our old index had several layers, some of which were refreshed at a faster rate than others; the main layer would update every couple of weeks. To refresh a layer of the old index, we would analyze the entire web, which meant there was a significant delay between when we found a page and made it available to you.

With Caffeine, we analyze the web in small portions and update our search index on a continuous basis, globally. As we find new pages, or new information on existing pages, we can add these straight to the index. That means you can find fresher information than ever before — no matter when or where it was published.

Caffeine lets us index web pages on an enormous scale. In fact, every second Caffeine processes hundreds of thousands of pages in parallel. If this were a pile of paper it would grow three miles taller every second. Caffeine takes up nearly 100 million gigabytes of storage in one database and adds new information at a rate of hundreds of thousands of gigabytes per day. You would need 625,000 of the largest iPods to store that much information; if these were stacked end-to-end they would go for more than 40 miles.

We've built Caffeine with the future in mind. Not only is it fresher, it's a robust foundation that makes it possible for us to build an even faster and comprehensive search engine that scales with the growth of information online, and delivers even more relevant search results to you. So stay tuned, and look for more improvements in the months to come.

Google Maps Navigation for Canada and 10 European Countries

Google Maps Navigation for Android is now available for Canada, Austria, Belgium, Denmark, France, Germany, Italy, the Netherlands, Portugal, Spain, and Switzerland, in addition to the 3 countries that were already supported: US, UK and Ireland. It's interesting to notice that Google still uses data from Tele Atlas for all the countries supported by Google Maps Navigation, except for the US and Canada.

"Google Maps Navigation is an Internet-connected GPS navigation or 'satnav' system that provides turn-by-turn voice guidance as a free feature of Google Maps. Google Maps Navigation (beta) with Search by voice is available in version 4.2 of Google Maps, on Android devices 1.6 and higher," explains Google.

Free turn-by-turn navigation could be an important reason why people choose a mobile phone, so Google and Nokia try to make the most of Google Maps Navigation for Android and Ovi Maps for Symbian. Most likely, in the near future, all smartphones will include a free application for navigation.

In other related news, Google Search by Voice is now available for German, Italian, Spanish and French. Search by voice is an important feature of the Quick Search Box app for Android, Google Mobile App for iPhone and Blackberry. The nice thing is that you don't have to download an update for none of the applications, as the new languages are automatically recognized.

Crawl Errors now reports soft 404s

Today we’re releasing a feature to help you discover if your site serves undesirable "soft” or “crypto” 404s. A "soft 404" occurs when a webserver responds with a 200 OK HTTP response code for a page that doesn't exist rather than the appropriate 404 Not Found. Soft 404s can limit a site's crawl coverage by search engines because these duplicate URLs may be crawled instead of pages with unique content.

The web is infinite, but the time search engines spend crawling your site is limited. Properly reporting non-existent pages with a 404 or 410 response code can improve the crawl coverage of your site’s best content. Additionally, soft 404s can potentially be confusing for your site's visitors as described in our past blog post, Farewell to Soft 404s.

You can find the new soft 404s reporting feature under the Crawl errors section in Webmaster Tools.

Here’s a list of steps to correct soft 404s to help both Google and your users:

1. Check whether you have soft 404s listed in Webmaster Tools
2. For the soft 404s, determine whether the URL:
3. Contains the correct content and properly returns a 200 response (not actually a soft 404)
4. Should 301 redirect to a more accurate URL
5. Doesn’t exist and should return a 404 or 410 response
6. Confirm that you’ve configured the proper HTTP Response by using Fetch as Googlebot in Webmaster Tools
7. If you now return 404s, you may want to customize your 404 page to aid your users. Our custom 404 widget can help.

We hope that you’re now better enabled to find and correct soft 404s on your site. If you have feedback or questions about the new "soft 404s" reporting feature or any other Webmaster Tools feature, please share your thoughts with us in the Webmaster Help Forum.

Google Maps Previews in Gmail

Gmail added a new Labs feature that parses your messages and lets you preview some content using web services. This time you can preview the addresses from a message using Google Maps. The addresses extracted by Gmail are displayed after a message and you can load a map preview without opening a new page.

Gmail already displays addresses from messages in the right sidebar but you need to click on a link to open the map in a new page. The new Gmail Labs feature has another advantage: it also previews links to Google Maps.

Gmail's blog says that a map preview feature is now available for Google Buzz, but it only works when you paste a Google Maps link in a Buzz message. Unfortunately, Google's thumbnails is really small and clicking on the thumbnail opens a static map.

To find the Labs feature, open Gmail Labs and use your browser's find-on-page feature (Ctrl+F / Cmd-F) to search for "Google Maps previews". Gmail Labs offers other similar contextual gadgets for previewing links to Flickr, Picasa Web, Yelp, Google Voice messages, Google Docs and the YouTube preview feature is enabled by default. Developers can create custom contextual gadgets for Gmail in Google Apps and hopefully the APIs will be extended to the regular Gmail app

Google Classic Plus

The new feature that lets you add a background image to Google's homepage has a name reminiscent of Microsoft: "classic plus". When you click on the link to iGoogle, there's an option to switch to the classic homepage. Now the classic homepage has an important feature that was only available in iGoogle: themes.

It will be interesting to see if Google adds more features from iGoogle to the "classic plus" homepage. Google could add some simplified gadgets that show if you have new messages in your Gmail inbox, new events in your Google Calendar agenda, gadgets for weather and news. Since Google only shows the search box and the two search buttons if you don't move your mouse, the gadgets wouldn't clutter the homepage.