Free Online Games Play - http://www.free-online-games-play.com/
A free game directory and portal featuring hundreds of free and easy flash games links.
Kan2.org - http://www.kan2.org/
Features only games related websites.
MutantGamer.com - http://www.mutantgamer.com/
Online directory featuring a database of game links and reviews searchable by category. Also includes Flash, Shockwave and Java web games.