Overview [Web Development platform using browsers]

Popfly is the fun and easy way to build and share mashups, gadgets, and Web pages. It’s made up of online visual tools for building Web pages and mashups and a social network where you can host, share, rate, comment and even remix creations from other Popfly users. If you're new to mashups and are interested in starting there, check out a popfly Videos

you can create your own mashups,gadgets and web pages using your own msn mail account

you can download the popofly explorer and start to work on your visual studio .Net IDE
download link : http://www.popfly.com/Overview/Explorer.aspx

find more about it at http://www.popfly.com/