DIV's are a must in all CSS-based web design. They give you all kinds of fantastic positioning ability and give structure to your HTML. You can put links inside of a DIV, of course, but sometimes you just want the whole DIV to be clickable as a link. No problem, here is how it's done:
The cursor style parameter changes the cursor into the default pointer cursor when a vistor mouses over the DIV, which is a nice visual indication of it's clickability.
Update May 12, 2011
<h3>A bunch of</h3>
<a href="http://google.com">stuff in here</a>