If I were asked to list the three most interesting rabbit sites I have encountered on the web, these would be they:
Poke the Bunny is an oldie but still a goody. The rabbit is fairly patient, but if you poke him one time too many, you'll be sorry.
At meet the rabbit !!!, a sophisticatedly flash-animated bipedal rabbit stalks your cursor after mistaking it for a carrot.
Oolong - The pancake rabbit was a real bunny (now deceased) living in Japan, whose owner created a photo diary documenting the animal's unique ability to balance all manner of things on its head.