We've mentioned Long Now Seminars many times, and for good reason: they consistently feature some of the world's most interesting thinkers about time. Historians, futurists, ecologists, physicists... Long Now's got 'em all. Better still, they're podcasting them. I listened to Will Wright and Brian Eno's joint talk last night, and found it mindblowing and full of insight into art, music, games and the process of change. I suspect most of the others are just as good.