Bloglines Communities

I was cleaning up my Bloglines subscriptions today. Deleting a few and adding a couple. It's funny how I have grown to appreciate people who blog a moderate amount or a little amount and how seeing Boing Boing at 200 everyday drives me nuts. Sigh. Unsubscribe. In the process I saw a new tab called communities. I clicked on it and saw that Bloglines has added support for Blogger, Buzznet, Flickr, Myspace, Live Journal, Spaces, Tribe and Xanga. Wow. Thats cool. I need to try it out to see how it works. I know a number of these sites are very protective of their advertising revenue so I am curious to see how they will view having their sites viewed through an aggregator.