Advertising is handled by Google AdWords, which lets you place your ad on specific pages. "Placement targeting" puts ads on individual sites in the Google content network. "Site sections" take that one step further by placing ads on only one section or even one page of a site. For info on link ads on the bottom of these pages, contact me.
For a description of how the Google AdWords program works, visit google.adwords.com. For info on site specific or web page specific advertising, visit http://adwords.google.com/support/aw/bin/answer.py?hl=en&answer=25716.
Good luck with your project and if there is anything I can do to help, please let me know.
Chris Lareau (for other inquiries or special projects, send me an e-mail)