The gambling industry has witnessed many dramatic changes in the last few years, one of the most significant being the explosion of interest in online gambling. bets placed over the internet now amount to a substantial percentage of all gambling turnover and all the major bookmakers now have a serious Web presence with sites enabling 24 hour online trading. It is not just the fixed odds and spread betting companies that have adapted to this new technology. The opportunities inherent in being able to administer a global marketplace have enabled the creation of new betting exchanges . This new development allows punters to set their own prices on events and to see if anyone wants to take them on. This comprehensive survey of the online gambling scene includes coverage of all these developments and also covers sites that offer the traditional casino games such as roulette and blackjack online. All major sites are considered and reviewed and the book aims to help anyone who is interested to find the most suitable sits for them to place their bets.