.NET alternatives to Yahoo Pipes

Question

Similar to this question, except .NET alternatives instead.

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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.

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Any suggestions?

Answer 1

Microsoft used to have Popfly but it was closed a couple of years ago.