VIP Casino (Popularity: )
http://www.vip-casino.com Featuring poker game and slot machine to play for free or for real money. No download required and secured transactions.
Videopoker.com (Popularity: )
http://www.videopoker.com/ Offers videopoker, slot games, prizes, contests and Las Vegas comps. Membership reguired for vip login.
WorldWinner (Popularity: )
http://www.worldwinner.com/ Membership site offering prize money competitions in games like spades, solitaire rush and word cubes.