Last year I beta tested Onfolio 2.0. I liked the application, but never got around to buy it when it was released. And now it seems like more people than I did like it, as Microsoft has bought the whole thing. It's now part of the Windows Live Toolbar!
Information on Onfolio's site at: http://beta.onfolio.com/product/toolbaraddin/
And download Windows Live Toolbar Beta at http://ideas.live.com