Billions of Twitter posts will no longer fade into obscurity now that Google is indexing them all in a massive, searchable database.

Google announced a new search feature that lets users look at an entire history of tweets on any subject, in any time frame. The feature will roll out over the next couple of days, but you can see it in action now through a special link.

By entering a search term and selecting "Updates" under search options, you can quickly find tweets on that term dating back to February 2010. Google says you'll soon be able to go all the way back to the first Tweet on March 21, 2006.

More: http://pcworld.com/article/194232/