Who says that Ivy League educations are too pricey for anyone but the privileged few? Like Harvard, Princeton and other schools, Yale is making some of its lectures available in Web-based form for free. Open Yale Courses is a particularly rich resource, featuring 35 full-blown courses complete with downloadable classes in video and audio form. Fill up your phone or MP3 player with a course on art history or organic chemistry and you can learn from some of the finest teachers on the planet while you're at the gym or stuck in traffic.