As you might recall, Microsoft has recently unveiled their new search engine, Bing. And with the recent announcement that Microsoft's Bing is going to soon power the Yahoo organic search results, Google needed to do something to keep their market share of search. Google has unveiled a new test version of their search engine, which is being called "Caffeine". This is being touted as the "next generation of search". Google says… To build a great web search engine, you need to: Crawl a large chunk of the web. Index the resulting pages and compute how reputable those pages are. Rank and return the most relevant pages for users' queries as quickly as possible. For the last several months, a large team of Googlers has been working on a secret project: a next-generation architecture for Google's web search. It's the first step in a process that will let [+]