Anyone with skills/knowledge of Companies Running Affiliate Networks?

Hi.

Trying to find knowledge about Affiliate Networks. If you have signed up with an Affiliate Network, or if you know someone at one of these Networks, get in touch with me!! Networks would be things like "commission junction", "partnerstack" , etc.

Basically, I'm trying to find a good sized list of web apps, that have "free" or low cost tiers. At the same time, I'm trying to focus on apps that offer "software" related services, as opposed to actual "products".

Any pointers/ideas/thoughts would be greatly appreciated.

thanks