Ronny gave me a link to newsvine.com, so I took the bait. Now, I am on newsvine as budi.newsvine.com. (I've got to inform Priyadi to add this to Planet GBT.)
It's still at beta stage and I am still learning what it can do. Basically, you can read/write news or just "seed" news (point to an article or news). It is a social news agregator (isn't it?). We'll see how it goes. Access to it seems to be very slow. Last night I even got "HTTP/1.1 error." (update: now, I tried to open a couple pages and they are still not coming - while I am typing this entry.)
Care to join? Or would you wait until they fix the performance?