Do you know Mashups?. Yahoo! has developed an interesting plattform to build your own Mashups. It's a simple web UI with flow graphics where you can connect wen 2.0 sources to get information and manipulate it and finally show in the pipe exit. The app was called pipes perhaps for the similar aspect.
The Yahoo! pipes web site. You can design here your own pipes and view an interesting video about build pipes, really very easy and powerfull.