To attract new affiliates to SFI is the only option and that is good advertising, publicity, promotion, and can, for example, just in the Triple Clicks choose according to their specialization. On banners or perhaps a website or solo ads, etc ..
Promote Triple Clicks is also good, but as motivation for a new branch. Offering them access to test yourself or offer as a gift Gift Card. Offer the possibility to register in their advertising. Motivation is very important for affiliates.