Google AdWords Hosted Business Pages
The Inside AdWords Blog announced a new feature that allows businesses without web sites to build a “hosted business page” for their business on Google’s servers and then use AdWords to send traffic there. The page is basically an informational page that tells people how to contact you and what you do. It is currently only open for new US advertisers, at no cost. More details on how it works at AdWords help. I believe Yahoo also offers a similar service.