I've used Dynamic Drive on several occasions when I've needed some nice JavaScript code to get me out of a bind. And I have to say that its one heck of a JavaScript resource.
Well, Dynamic Drive just came out a new site that is catering to Cascading Style Sheets and DHTML!! Its called the Dynamic Drive CSS Library and it is hella cool. You get free code for everything from arrow comment boxes like NetFlix uses to cool CSS Tab menus!
This is really a cool find and I highly recommend it to new and experienced web developers.