Here's an annotated list of other sites that analyze fact checker report cards.

Politi-Psychotics

This site is awesome. Author Karen S. has the full data set of PolitiFact rulings and has done a lot of in-depth analysis on fact checking and fact checkers that you won't find on Malark-O-Meter.

Quibbling Potatoes

Steve's also done a tone of work breaking down PolitiFact's rulings by topic, party, and even the occupation of the individual or group whose statement is rated.

whosmorefullofshit.com

This site is hilarious and aesthetically pleasing. I seriously wish I could code CSS and PHP as well as J. Kalgreen can.

PolitiFact Truth Index

The PolitiFact toyed around with a Truth Index, which averaged Truth-O-Meter rulings on a scale similar to Politi-Psychotics' and Quibbling Potatoes'. They don't compare across individuals or groups.