Create a Favorite Web Sites folder in your Web browser, and drop a bookmark to Web sites that inspire you and that you want to take a closer look at.
Stroll through CSS Zen Garden, and play with changing the look of a single Web page just by changing the style sheet attached to it. This site challenges designers to master CSS and push the envelope on what's possible. Check out the luscious, full-color book The Zen of CSS Design: Visual Enlightenment for the Web (Voices That Matter), by Dave Shea and Molly E. Holzschlag (Peachpit Press).
http://www.csszengarden.com
Figure out what to do, while looking at what not to do!
http://www.webpagesthatsuck.com