Canasis
Offers card games, board games, and domino games including canasta, euchre, pinochle, spades, checkers, and more. Play with or without internet, online against real people or robots.
http://canasis.com/

Solitaire Now
Online directory of free solitaire or patience card games. See all kind of solitaire games like Freecell, Klondike, Spider Solitaire, Yukon, Golf, Pyramid, Canfield etc and download free Solitaire Games for different platforms like Windows, Macintosh, Palm OS and Windows CE based systems.
http://www.solitairenow.com/