Below are a few links that will take you to sites that have HDR tutorials. I thought that I would do all the hard work for you and place all these tutorials on a single page. I figured I would give you a bunch of tutorials to choose from and leave it up to you to find the one you like the most. Enjoy!
http://www.stuckincustoms.com/hdr-tutorial/
http://www.vanilladays.com/hdr-guide/
http://www.luminous-landscape.com/tutorials/hdr.shtml
http://www.backingwinds.blogspot.com/2006/10/how-to-create-professional-hdr-images.html
http://www.flickr.com/photos/cleever/255026221/
http://www.flickr.com/groups/l4/discuss/72157594241560739/
http://www.naturescapes.net/072006/rh0706_1.htm
http://www.cambridgeincolour.com/tutorials/high-dynamic-range.htm
http://hdr101.com/hdr-tutorial.html
If you have a HDR tutorial you would like to have listed here, you can contact meor simply add a comment below.