Yahoo! Pipes creates new pages by aggregating RSS feeds from different sources. Simple commands (sorting, counting, truncating) can be combined together to create output that meets your requirements.
This is how Pipes work
-Drag and drop editor lets you view and construct your pipeline
-You can fetch any data source via its RSS, Atom or other XML feed
-Extract the data you want, combine it with data from another source
-Apply various built-in filters as well as user-defined filters and much more...
Here’s how you can create your own pipe with Yahoo.