- Wikipedia: Blackjack
Encyclopedia article on blackjack, a casino card game also known as twenty-one.
en.wikipedia.org/wiki/Blackjack
- Yahoo! Games: Blackjack
Play blackjack against other players online in the Java-based blackjack game at Yahoo! Games.
games.yahoo.com/games/login2?page=bj
- Yahoo! Groups: Blackjack
Online communities devoted to blackjack.
dir.groups.yahoo.com/dir/Games/Card_Games/Blackjack
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