John Montgomery writes about Microsoft’s Popfly service for mashups:
# It’s easy to get. All you really need is Firefox 2 or IE 6 or 7. Oh, and Silverlight, but that’s pretty easy to get.
# It’s easy to use. People have talked about wanting programming to be like connecting Lego blocks; Popfly gets pretty close.
# You can create mashups with it. This is kind of its purpose, but it’s neat nonetheless.
# You can create web pages with it. We “borrowed” the Office Live team’s page editor technology.
# You can use it with Visual Studio. If you’re a VS user, you can get Popfly Explorer and start to share projects with your friends on Popfly.