Stumbled across this blog post today and it has some great information.

Just browsing though it, there are way more than 60 tutorials. In fact what this is, is a list of 60 lists of tutorials. So this list represents 1000s of tutorials.

A lot of the tutorials cover the same topics (I counted 12 talking about HDR), but there are some real gems in there. I especially liked some of the tutorials in 50 Excellent Digital Photography Photoshop Tutorials