I was reading my feeds today and at Reap Money on Line Jeni and Bong had written about a new type of networking site called Scoutle where it does the seeking of new blogs for you. So I signed up just to see how it goes.
The other is just out today called Reframe It which allows you to make comments on any website.
"Reframe It seeks to transform the nature of the public web by creating a virtual margin alongside any web page on which users can post comments to be shared with other users and read what others have written."
So we will see how they go.