Yahoo! Pipes is an interactive feed aggregator and manipulator.
It is to web services, what the unix pipe ( the ‘|’ character) is to the command line.
With its nice visual editor, you can manipulate very easily multiple feeds, send them to other web services and so on…
Yahoo Pipes is “a hosted service that lets you remix feeds and create new data mashups in a visual programming environment”. In Unix, a pipe (or a pipeline) is “a set of processes chained by their standard streams, so that the output of each process feeds directly as input of the next one”.
Yahoo created a service that lets you treat feeds like some standard text files.
How to create a pipe
