Lifestream.fm

"Lifestream.fm is a media and social aggregator that will keep you and your friends informed about what you're doing online at a glance and in realtime. With Lifestream.fm you can put all your profiles and activity from your favorite web services all on one page, making it easy for your friends to see your newest bookmarks, your favorite videos, your tweets, photos you've uploaded, your newest blog posts, and more."

Further:
Lifestream on your desktop
With our Adobe Air application you can have all of your friends' Lifestream activities always on hand. After you install the Air application, you'll have your friends' latest updates in view.

More on the Lifestream-Blog/

Lifestream.fm

---

Competitors:
http://www.freundenews.de
http://friendfeed.com