Finally Google has announced that new search index Caffeine is completed.
Read more at their blog: New Search Index: CaffeineToday, 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.)
Sooner or later, this will definitely have a great effect on SEO. A well built website are now prioritized rather than the links that it obtains, it is what google caffeine is working for.
Google has announced caffeine is now live
Caffeine provides 50 percent fresher results - results are added straight to the index
Official Google Blog: Our new search index: Caffeine
Vanessa Fox also mention Caffeine "could potentially associate that page with several countries"
Google’s New Indexing Infrastructure “Caffeine” Now Live
/me gets some sleep!
bogart (24 June, 2010)
Yes Caffeine is already live,recently Google has made a lot of changes in its algorithm.So now we're getting more fresh sites in Google search which affected many sites.But Caffeine is good one as it'll provide fresh contents & it's indexing much faster than the earlier version.