buildzion.com

Gamehouse.com has high-quality games for a price of about 7$ per month (one game per month) including:

  Blokus     (4 players)
TextTwist 2
Bookworm    (Classic word spelling game, like Boggle)
World Mosaics  
Rocket Mania
Herod's Lost Tomb (Hidden Pictures)

Blokus is a classic board game for up to four players in which you place your pieces corner-to-corner, but you can't touch the sides of your own color. Whoever puts down the most pieces wins. Good for all ages.