Popfly

Popfly, in my opinion, is Microsoft's first real offering that is actually innovative and not following the crowd. The ideas are much more Web2.0 (I hate that term), rather than following what others are doing. It seems actually genuine and not an afterthought that they've squeezed into a product. Based on their new Silverlight technology it allows power users to mashup different technology in a very cool and new way. I still think that one of the things holding MS back from being more accepted is their annoying insistence of requiring a passport account for EVERYTHING! They have a ton of great content and products but it's all gated behind passport. Very annoying, even when I already have a passport account. Check it out, it's very very cool.