PopFly by Microsoft
http://www.popfly.ms/

The Non-Professional tools team builds software to enable new, hobbyist, and other non-professional programmers – as well as complete non-programmers – to build and share their work. Their team’s vision is to democratize development by making it approachable to an entire class of people that want to “create” without necessarily having to write code. They believe that if you can send an email, you should be able to build and personalize your own website, mashup, social networking site, or blog. This has been added to Script Resources Subject Tracer™ Information Blog. This has been added to World Wide Web Reference Subject Tracer™ Information Blog.