Facebook’s previously announced realtime engine has been released, coverage from Mashable:
Fast forward to today: Facebook just announced that it is rolling out the new Facebook search. With realtime search and FriendFeed in its pocket, Facebook is gunning directly for Twitter.
Also for Mashable, a story on Google’s “major revision” of its engine. I plan to dig into this one, as I sense it has a lot to do with crossing the infrastructure chasm to real time:
Secretly, they’ve been working on a new project:the next generation of Google Search. This isn’t just some minor upgrade, but an entire new infrastructure for the world’s largest search engine. In other words: it’s a new version of Google.
The project’s still under construction, but Google’s now confident enough in the new version of its search engine that it has released the development version for public consumption.