Google Sites is a free product that makes it easy to create websites. It's pretty basic, and it's designed primarily to be a group site or intranet, where you can share documents, calendars, etc.
Now, Google is allowing AdSense to be displayed on these Sites. Publishers have the option to place AdSense in the sidebar as well as the main content of each page.
Check out this video for more details:
Meet Your Favorite Search Engine Watch Contributors
Many of SEW's leading expert contributors will be at ClickZ Live, the new online and digital marketing event kicking off in New York (March 31-April 3). Hear from the likes of: Thom Craver, Josh Braaten, Lisa Barone, Simon Heseltine, Josh McCoy, Lisa Raehsler, Greg Jarboe, Dan Cristo, Joseph Kerschbaum, John Gagnon, Eric Enge and more!