Excellent 3-D illusion drawings on sidewalks by Julian Beever:

Sidewalk Art

My Favorite YouTube funny videos:

Chorus of laughing quadruplet babies

http://www.youtube.com/watch?v=dcCZABr_G1k

dancing bear:

http://video.google.com/videoplay?docid=-207050463580037930

This baby has Yoda-like expressions:

http://www.youtube.com/watch?v=tF2YxMrjWIU

Very cool contestant on "Who wants to be a Millionarie?"

http://www.youtube.com/watch?v=0BdAdRL_2Wo

Do you complain about your country's traffic? See this:

http://video.google.com/videoplay?docid=-2063667852598904740&hl=en

You should watch this bird's mating dance (please see the final part of the clip especially)

http://www.youtube.com/watch?v=T2Bsu4z9Y3k