picks one that cater to your needs, I rather have too many networks out their then to little.
If you plan on doing content locking, incentize then go with the top established ones, awm, adscen, adnooka, incetly
or if you looking to promote more solid offers like diet, heatlh & beaty go with non incentive networks.
use offervault to see what networks have the best offers for your particular niche and methods and then look at affpaying to cross check the networks on liability and reputation.