About.com Casino Gambling: An extensive resource on casino gambling from About.com.

Times Topics: Gambling: A collection of gambling articles from The New York Times.

Sports Betting Lines Explained: An explanation of how "lines" work in sports betting from AllExperts.com.

6 Best Online Casinos: Provides rules and tips for online gambling games; rates and reviews online casinos based on payout rates, quality and quantity of games, customer service, and policies. Also includes tips on choosing an online casino and a gambling dictionary.

Betting to Win: Provides newsletter, hints, and tips about online gambling, as well as strategies and rules for online games; reviews and recommends online casinos for payout rates and promptness, bonuses, and customer service. Also notes which casino sites offer downloadable software, free play, and other options.

The Crapshooter: News, strategies, and tips for playing craps in casinos and online.

Daily Racing Form: Horseracing entries, race results, charts, and past performances for all North American tracks; live odds for all racetracks; free handicapping software.

Free Casino 1: Free online versions of popular casino games.

Gamblers Book Club: Online bookstore devoted to gambling books, software, videos, and DVDs.

Gambling Smart: News and information site, with tips, strategies, and links to free and pay gambling sites.

Gaming Day: Rules, strategies, and general information about casino games, as well as links to several online gambling sites.

Greedyhog Gambling: Offers news about online gambling, tips and rules for playing, and keeps track of payouts and bonuses for online casinos.

Il Dado: General gambling information site, with directories of land-based casinos, bingo halls, horse and dog racetracks, as well as rules and strategies for most casino games.

Online Bingo: Free bingo games online with chat capabilities.

Online Casino News: Daily news updates on the casino industry, including land-based and online gambling sites. Reviews, tips, and strategies for playing.

Winner Online: Free e-newsletter, rules and tips for casino games, reviews of online casinos and software.

Wizard of Odds: Provides mathematical evaluations of casino games, reviews of casino software, rules, advice, and strategies for games.