This is, of course, exactly how they get you to link to their thinly veiled advertising. But it's worked on me -- Parker is #10 (at the moment -- only 9 votes from the top!) on Purina's Pet Charts. (Parker, by the way, eats only Iams.)
Update: Thanks, y'all. Your clicking got Parker to the top cat spot today, and just a couple clicks behind an admittedly cute dog.