Yet Another Haskell Tutorial (PDF) worked for me.
Edit: Updike points out that the text of YAHT has been folded into the Haksell Wikibooks. The PDF is still useful if you (like me) prefer to print out and read on paper.
BTW I have also read A Gentle Introduction To Haskell (also available as PDF). I will definitely not recommend this for beginners. It is only gentle compared to the Haskell Report. However it is a good reference when you have a solid understanding of the language.