Google Caffeine : How google's new indexing system helps for searches & publishers

Google now announcing there new indexing system called Caffeine. Google says Caffeine search engine indexing system is much faster than there older system, news story, blog post or forum post you can now find links to relevant content much sooner after it is published than was possible ever before.
Caffeine provides 50 percent fresher results for web searches than there last indexing system, According to Google this is the largest collection of web content Google offered.Why Google goes for new indexing system instead of current index ? Content on the web is getting bigger and bigger these content might be text, images, videos, news and some real time updates. And also present web pages are richer and more complex too. From the Searches perspective They need the latest relevant content . And publishers need quickly appear there posts on search results. To meet these expectations Google implement his new search indexing system.
The image below explaining how different between old indexing system and the new caffeine.

Before comparing old index and caffeine , let look how search engine crawl the entire web and storing those data. When you search Google , your not searching the live web, your searching your query through the Google database or index or register like we do in a library. If we want to find specific book , first we go to librarian or searching the index of the library. After finds the specific place for that book we go to that rack to get the book. Index system helps you to find that specific pinpoint. Google does the same for you. Google has the index of the web , it shows the path to find relevant data for your search query,
Google's old indexing system had several layers, and some layers refreshed in faster rate than others. The main layer update every couple of weeks. Couple of weeks means there is some kind of significant delay with published date.
In Caffeine, Google analyze the web in small portions and update there search index rapidly and continuously and also globally. If the “bot” finds some new information on existing pages it directly added to there index. Now it's no matter for both searchers and for publishers, if you need fresher information ,here you have it , Publishers also can also publish there hot information and get index in much faster.
According to Google in every second caffeine processing hundreds of thousands of pages parallel. So the new indexing system much busier than the old one.
Google saying “We've built Caffeine with the future in mind”.And there idea is to build faster and comprehensive search engine that delivers more and more relevant results. Google engineers still working on this great system, there will be some more improvements in coming month. We have to wait to see that.