I'm currently listening to the best show on the radio, Coast to Coast AM w/ George Noory (590AM from 10pm - 4am in Austin.) If you haven't ever taken the time to listen to the show, you really should. I'll be the first to tell you that there are a lot of nut jobs on there talking about how they can teleport you to the cave where Bigfoot mates with the Lochness Monster (or some such nonsense), but the show also has a lot of other really interesting information about less ridiculous concepts and ideas. I listen to this show nearly every night before I fall asleep and it certainly presents things to think about that I may have never otherwise considered, and to me that makes it great.