Caffeine - Google's new search Index
Today, Google announced the completion of its new web indexing system title Caffeine. Google boasts that 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.” Google goes onto explain just how their old index and Caffeine work. Google's 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, Google 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 o...