Scoble picked up on this post about BlogRovr and put it in his shared items feed. As the BlogRovr folks put it, you "download BlogRovR’s browser plug-in and tell Rovr what blogs you like. While you browse, Rovr will show you posts from them about the page you’re on. Rovr’s tray slides in briefly showing summaries of the posts it finds."
Pretty cool...assuming you do all your blog reading outside an RSS reader! You have to go to the blog's web page to use this service. 95% or more of my blog reading is done within Bloglines. I typically only visit the blog's page if I want to post a comment.
Am I the only person on the planet who rarely goes to a blog's page?! If it doesn't work within my RSS reader it's not going to do me much good.