Dan Filler (Drexel) has already collected a lot of information. Consistent with its hiring aspirations, Harvard has invited almost every law professor in the U.S. to visit once again. Note that Professor Filler's list does not distinguish between 'look-see' and 'podium' visits. The lists are also clearly not yet complete, at least for some of the schools that I know about. Share your info with Professor Filler!