Similar to this question, except .NET alternatives instead.
Excerpt rom http://pipes.yahoo.com/pipes/:
About Pipes
Pipes is a powerful composition tool to aggregate, manipulate, and mashup content from around the web.
Like Unix pipes, simple commands can be combined together to create output that meets your needs:
- combine many feeds into one, then sort, filter and translate it.
- geocode your favorite feeds and browse the items on an interactive
map. - power widgets/badges on your web site.
- grab the output of any Pipes as RSS, JSON, KML, and other formats.
Any suggestions?
Microsoft used to have Popfly but it was closed a couple of years ago.