Creative Techs

If you're trying to figure out how to use Photoshop, Illustrator or any of those fancy design programs to design your own materials, here's a great resource with a free newsletter full of tips:

http://www.creativetechs.com/

Also, you might try the eLearning on lynda.com - if you want to learn a particular application in-depth (say, Dreamweaver so that you can do your own website maintenance)