Unlike most of the other online Kama Sutra guides we've featured here over the months, the illustrations on this site are animated—thus making it a lot easier to tell your Black Bee from your Bamboo. But you'll still have to be careful about straining yourself while following the more advanced positions. Those little CGI models are a lot more flexible then you'll ever be.
Kama Sutra Animated (forthnet.gr, via sexblo.gs)