Bubole - This little site lets you create a monster and fight other monsters that users have created.
Safety Graphic Fun - This little gem highlights some of the funnier signage we need in lack of common sense.
Virtual NES - Ahhh the joys of 8-bit. This site lets you play all the original NES games online for free and in your browser. Game on!
Answerbag - Post a question about anything and have it answered within minutes. Hmmm....what is the meaning of life? or Why does it hurt when I pee? could be useful ;)
FailBlog - A website that highlights the finer Epic fails in life. There are photos and videos that will keep you laughing for awhile.
Songza - A site that allows you to search the nets for songs and play them as much as you like. You can create playlists and share them with your friends.
Monoface - Think of this site like a real Mr. Potatohead. You create crazy mashups of people using any number of combinations of body parts.
There, I Fixed It - Not being very handy myself I can relate to some of these homemade solutions on fixing things.
Let me know if you have any others you would like to share?