My main business model online is Leadgen AKA pay per call. Simply put, you get paid for each phone call that you send to business owners. However, clients can be a pain to deal with, which is why Affiliate Pay Per Call Networks give you the best of both worlds. All you have to do is sign up for an affiliate network, generate email or phone call leads and you get paid by them for each call/email you generate. Completely hands off. No back-and-forth with clients or dealing with questions about this or that. All you need to do is generate the calls and get paid. This is my favorite business model. (And the most passive)