Online Casinos 21 has Sports Betting links dealing with Sports Betting

Big Guy
Offering sports simulation and monitoring.
http://www.bigguy.com

Racing Intelligence
UK advisory service based on "all source" information and intelligence analysis.
http://www.raceint.co.uk

Horse Racing Profits
Daily best bet service, plus betting strategy information.
http://www.horse-racing-profits.com

Won Again
Betting system, plus free arbitrages.
http://www.wonagain.com