Perhaps you remember the name Donald Kagan, a tenured professor at Yale and one of the nation's leading authorities on ancient Greek history. Once a liberal democrat, he became something of a neocon celebrity at Yale in the 1990s by daring to argue that western civilization had something to offer a university. Well, now his introductory course on Ancient Greece is available for free on line here on the Yale University web site. There are courses by other professors there as well and I can't vouch for any of them, but Kagan's courses are worth checking out. You don't get to be Sterling Professor at Yale, winner of the National Humanities Medal and have one of the most popular classes for 25 years without doing something right.