In a recent blog post, Google announced the completion of work on its updated Web indexing system - Caffeine - which is apparently fast enough to deliver search results from updated sites within seconds!

According to the information forwarded by Google in the blog post, Caffeine "provides 50 percent fresher results for web searches" than the earlier index of the company; and also marks the biggest collection of Web content offered thus far by Google.

Disclosing the Caffeine was now `live', Google said at the Search Marketing Expo in Seattle that, with Caffeine, the company will be able to index the updated information immediately while `crawling' the Web.

Presently, Google had been `crawling' a part of the Web each night, and subsequently indexing batches of new information. Earlier on, the company's index was updated after a month; with the updates being indexed every four months or so.

Further elaborating the speediness of its Web indexing process using Caffeine, Google said: "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."

Matt Cutts, head of the Web spam team at Google, has revealed that the immediately indexed information included in Google searches will specifically find a mention that it was posted "seconds ago."