Like the back pages of most American newspapers, media Web sites are increasingly getting into the commentary game. CNN.com recently expanded its use of commentary with an Op-ed from New York Governor David Paterson arguing for the need for an obesity tax.

But CNN.com would be wise to not serve advertising on these Op-ed pages. When we clicked through ads for Target and Chevy appeared. But also an ad for something called MVPParents, which includes a mission the Governor writes about: A healthy parent-child co-existence.