One of the latest exploding internet memes is Dramatic Prairie Dog (also know as Dramatic Chipmunk). First the was there was the Dramatic Prairie Dog video (now with over 1 million views), which was based on footage from a Japanese TV show.
BustedTees created a great logo and t-shirt to help in the meme propagation.
Then, of course, a blog emerged to chronicle the world of the Dramatic Prairie Dog, listing various remixes and re-creations, including some from popular internet denizens such as Nick Douglas.