I run into some interesting sites from time to time, like Bibliodyssey, a place where the proprietor scans pages from rare and ancient books, producing some of the most interesting things I've ever seen on the internet, Music Thing, a blog about odd and interesting musical instruments are displayed and discussed, Optical Illusions, which is fairly self-explanatory but sometimes surprising, Patently Silly, which is run by a patent clerk who keeps an eye out for the more ridiculous inventions of our time, and of course TV in Japan, which as you might imagine presents the more bizarre Japanese TV fare in handy YouTube video segments. All of these are worth a weekly check, at least.
But all of them together can't equal the glorious goodness of the Athanasius Kircher Society, where fans of the late Kircher, sometimes called "the last Renaissance man," post about things they believe the great man himself would find interesting.
And interesting they are. Check the first ten or so posts and tell me you aren't fascinated.