My favorites in order: Linkconnector Linkshare CJ shareasale A lot of times it depends on the products. I like Linkconnector for their reporting, technology and support. I like Linkshare and CJ for their large branded merchants. I like shareasale bc they let you do whatever you want and let the companies themselves police everything. I use some other small networks too. Its more about the specific programs and how I'm trying to promote.