Here are couple great Yahoo Pipes tutorials. I’ve been playing with Yahoo Pipes for a while now. I give Anil Dash’s great post back in Feb credit for that!!  Anyhow here are several of the tutorials I have found useful.

[youtube=http://www.youtube.com/watch?v=bijSL5KR558&feature=related]

[youtube=http://www.youtube.com/watch?v=w0jZmvFJwek&feature=related]

[youtube=http://www.youtube.com/watch?v=d3h6ROs__II]

[youtube=http://www.youtube.com/watch?v=2pVxqgt5jTs&feature=related]