Arcade Style Games

The top of the list must be Zeeks. So many!
http://games.zeeks.com/games.php

Bonus must come next.
http://www.bonus.com/
Great site. The menu is at the top.

Windaroo.
A Queensland School Site - some excellent games.
http://www.windarooss.qld.edu.au/Kids_Pages/arcade_games_nf.html

Pauly's
Some great games for younger kids.
http://www.paulysplayhouse.com/paulys_playhouse/main_menu/main.html

Free Arcade
This site has some of the best. Try Wickywoo
http://www.freearcade.com

PacMan Online
http://www.emeline.com/pacman/pacman.htm

Bonus. Everyone's favourite.
So many excellent games.
http://www.bonus.com  

Bubble Gum Club. Nice site with lots of games.
http://www.bubblegumclub.com/pages/arcade.html

Nickelodeon - one of the best!
http://www.nickelodeon.com.au/gameroom/catdog/cd_granny/granny.htm

Triplets and Us
Lots Of All Time Favourites. One of my favourite sites. GREAT!
http://www.tripletsandus.com/80s/80s_games/arcade.htm
 

Orisinal
The most original site. Not your everyday site but great games.
http://www.ferryhalim.com/orisinal/

Some others worth a look.
http://www.candystand.com/games/default.aspx

http://clevermedia.com/game.php

http://www.arcadegamesonline.com/games

http://www.smallgames.com

http://yahooligans.yahoo.com/content/games/

http://www.justriddlesandmore.com/kidsgames.html

http://www.justriddlesandmore.com/games.html

Some links to other sites.
http://www.kids.net.au/kidscategories/Kids_and_Teens/Games/Online

Great site - easy to follow and not to busy.
http://www.activitypad.com/online-games/arcade.html

Lots here too. Excellent page! Easy to read for younger kids.
http://free-coloring-pages.com/game.html

Google link
http://www.google.com.au