On one of the copyediting email lists I follow, someone recently linked to the following article: “Paradigm Consistency and the Depiction of Stiltedness: The Case of than I versus than me.” I heartily recommend reading it to anyone interested in how the official rules of formal, standard English often differ from the everyday usage of most folks. Though it leaves something to be desired from my perspective as a psychology researcher, the article does an admirable job of opening the line of inquiry for future better-designed studies. Enjoy!