ClickDealer is one of the most reliable affiliate networks out there. They have a lot of offers with high payouts. The only downside (for me) is that for newbies, the payout is a bit high and far between (Net-15 and $500 minimum). I've tried promoting the same offers across several networks and found that Clickdealer (and Mobooka) had the best conversion rates for the same creatives and traffic sources.