Here are some of my favorite sites, they are sorted by category.

www.runescape.com An online game where you can talk to other players and do quests and that sort of stuff.

www.flashplayer.com A good site for flash animations and games.

www.globz.com A site that has high quality flash games.

www.soldat.prv.pl Homepage for a side scroller shooting game.

www.autumnfog.vze.com A game that looks a bit like soldat (havn't played though, banned from games).

www.popcap.com A site with some good games, there are online and download versions for almost any game, so that's useful.

www.blitwise.com This site has very high quality games, thought there aren't that many of them.

www.monkkonen.net/notrium.php .Nortium is a top down game where you are trying to escape from an alien planet

www.download.com You can download almost anything here.

www.filefront.com Has lots of game demos and screen shots.

www.howstuffworks.com A site that explains inventions and devices.

www.google.com Ahhhh, the good old (or new) search engine.

labs.google.com Some very good google betas in here.

www.gamedev.net A very good site and forum for any programming help.

www.brainbashers.com A good logic puzzle and optical illusions site.

www.rinkworks.com A very funny site, has a wide variety of jokes, compressed movies reviews, and games.

www.funnyjunk.com A collection of jokes and funny movies (you have to see "End of Ze World")

www.pitt.edu/~deben/freebies.html A very good piano notes website.

www.mfiles.co.uk/ A site that has sheet music, you might need to download a plugin (scorch) to look at some of the music.

www.freesheetmusicguide.com/piano An archive of free sheet music sites, very useful.

www.debreuil.com My dad's site, hasn't been updated in years... :-)

www.debreuil.com/sky2005 My bro's site, you might need Flash to view some parts of it.

www.xamlon.com The company my dad works for, .NET to flash.