The social-networking giant finally improves its search tool, letting you sift through a month of news feed data. It's also another sign that a collision with Google and Twitter may be imminent.

Facebook's search engine has lagged behind the rest of the site's innovations, sometimes feeling like the limited web search engines of the '90s ... but no more. Today it's had a dramatic refresh that even adds in--surprise!--a Twitter-like mojo.

The news hit on Facebook's blog, where the company describes some of the new features. The biggest improvement is that you can now search through the last 30 days of content in your News Feed--any status updates, photos, whatever. Those FB users who've chosen to make their status updates public will also find their data coming up in these searches. It's a pretty potent trick because it lets you backtrack on what's been going on if you've not logged into FB for a few days. And because it covers photo updates, links, videos, and even fan pages, there's going to be lots of interesting data returned in a search.

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