Things to occupy your time when you're bored, or fun stuff to look at when you need a break.
John & John - tasteless and vulgar: it may offend.
Browser Based Fun
These are generally games, puzzles and toys that run in your browser - they may or may not work in all browsers of course, and may require some kind of plug-in in order to function. Rather than just link to websites full of games, it might be best to link directly to a page containing a game/puzzle to enable visitors to get the quick-hit of fun.
These require the Macromedia Flash plug-in to be installed in the browser.
One key game (click the bottom link on the left) - A very simple game requiring just one mouse button. Hold the mouse button to lock the arrow direction to get to the stars.
Chaos Theory - Click once to start an explosive chain reaction blowing up the dots as they fly up and down. Game finishes after 3 rounds.
Watch TV over the Internet.
Watch other peoples webcams (this is a family website - no dodgy ones please)
These require a Java runtime environment to be installed, and the necessary plug-in to be installed in the browser.
Sodaplay - Vector based physics fun.
These are games that will require downloading and installing to play, so won't be an immediate hit like the links above. They may well be available via whatever package management system your distribution uses. This list is merely to raise awareness of the gaming possibilities. The games listed here should be free, not commercial games.
Enemy Territory - Wolfenstein based 3D first person shooter.
Neverball - Devious 3D puzzle game
XPilot - Classic (i.e. old) 2D multi-player space shooter
LiquidWar - Tactical multiplayer game where your dots kill the other dots.
See also The Linux Game Tome.