Just for Fun

Good Night, Mr. Snoozleburg and other games
http://www.cyberkids.com/fg/index2.html
Animated arcade games.

Java Games
http://www.darkfish.com
Including reversi, checkers, nimskulls, and others. You play the computer.

Cyberteens - Fun & Games
http://www.cyberteens.com/fg/
Games, brainteasers, jokes and animations.

Game Genie.com Flash Arcade
http://www.gamegenie.com/arcade/index.shtml
Site also includes PC and console cheats and hints, demos, news and reviews.

Games Domain.com
http://www.gamesdomain.com/
Reviews, cheats and previews of console and PC games.

GameSpot
http://www.gamespot.com/
Action, adventure, driving, puzzle, role-playing, simulation, and sports games. Find out about strategy and hardware, and read news, reviews, previews and hints. Also download demos of new games.

Comics

Comics.com
http://www.comics.com/
Over 90 different popular comics on the web.

Calvin and Hobbes
http://www.ucomics.com/calvinandhobbes/

Garfield
http://www.garfield.com/
Everything you ever wanted to know about the cat who's been in the comics pages for over twenty years.

Miscellaneous Fun

The Conjuring Cabaret
http://magic.rufy.com/
Free magic tricks for beginner and advanced magicians

How Stuff Works
http://www.howstuffworks.com/

Kiss This Guy: the Archive of Misheard Lyrics
http://www.kissthisguy.com/

Roadside America
http://www.roadsideamerica.com/
Online guide to offbeat tourist attractions.

Voxxy.com
http://www.voxxy.com/
Just for girls - just for fun.

Urban Legends
http://www.snopes2.com/
Is it for real? Check this site to find out.