LONDON -- "The bookies always win," as they say -- but so can their shareholders. Look at Paddy Power (LSE: PAP.L), for instance, whose shares are up 1,000%! In this video, David also discusses the fortunes of William Hill (WMH) and Ladbrokes (LSE: LAD.L), and talks to Sonia Rehill about three factors that investors should look out for when evaluating a bookmaker's potential.

Unlike entering a bookies, the odds don't have to be against you when it comes to investing! The Motley Fool gives you more of a chance to succeed with more share ideas, found within our latest free report "How To Unearth Great Oil & Gas Shares," which describes how to pinpoint potential winners from the resources sector. You can download the report here. But hurry, all Fool reports are available for free for a limited time only.

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