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This week Facebook opened up its News Feed to third party services, allowing users to add content from outside sites to their Facebook feed. Third parties could already allow their users to do this by creating Facebook Apps. However now users will be able directly import these content streams by inputing their login credentials to Facebook. It's a good first step, but not enough.

The social news space is developing at a mind-boggling pace. Just in the last 48 hours Yahoo! launched its new site Buzz, the increasingly mainstream site Mixx announced more funding and Digg held its first ever town hall meeting. Meanwhile a screenshot of the soon to be aggregated service Tumblr has been leaked, my email inbox is filling up with friend notifications from the $5 million richer FriendFeed and BricaBox launched a social content service. Those are just the highlights over the last two days, there's even more related news I'll pass over for now.

Six Apart this morning launched a plugin for their MovableType blogging platform that aggregates and displays a user's activity from social web sites. Similar to FriendFeed, the Action Streams plugin displays things like, your latest posts to Twitter, images from Flickr, videos from YouTube, or events from Upcoming. The plugin is available this morning as a free download for MovableType 4.1 and currently supports 75 difference services.