National Geographic has a lot of cool webcams. Pete's Pond in Africa is my favorite. (previously) It's up and running again for its third season till mid-December, the end of the dry season. Best viewing times are 4-8 PM EST and 12-4 AM EST. Lots of highlights can be found at youtube, of course. NG also provides the Seal Cam from Año Nuevo, California, Bald Eagle Cam from Maine, the Kakadu Cam from Australia and and the Polar Bear Cam from Canada. There are a lot of grizzly bears fishing right now on the Bear Cam from Alaska, but the Crane Cam from Nebraska is down right now. To view these cams you have to sit through a short commercial at first, but after that it's all live wildlife goodness. There are also very active forums where people share their screencaps and vicarious adventures.