France changed its online gambling laws recently and has just in the past week been opening its Internet poker market to non-French operators. (CAP News has details, if you’re interested.)
So far, bwin, PartyGaming, and Everest Poker have been officially licensed to offer online poker services in France. You’ll want to contact their individual affiliate managers to get the details on how to get into the poker affiliate marketing business there:
bwin
Everest
PartyPoker