A few miscellaneous hints and links about Haskell
Hoogle searchs the haskell API
Haskell, the confusing parts is a useful page on syntactic oddities, although the link might break (let me know).
A good reference for Haskell is Real World Haskell
The Haskell Wikibook is also good; arguably better than Real World Haskell if you like concise explanations rather than worked examples.
A student recommended site/book is Learn You A Haskell
Interactive Haskell tutorials on the web at School of Haskell
Two tutorials on Monads as Computation and as Containers