There isn't a such a service per se. There are several methods we us to find bloggers but most are more manual. They are: 1) Via conferences like Affiliate Summit (largest affiliate conference in the US), Type-A Mom (one of the most active mom focused blog conferences), NMX (largest blog confere...
Response rate depends completely on the effectiveness of your material, quality of your product and site, brand recognition, commissions, etc. Regardless, with affiliates, the more the better. You are paying commission. There is no real negative to having more effective affiliates.
This is what professional networking is about. Even if neither of your receive instant gratification on the objectives you're trying to push right now, the relationship could end up being profitable to both of you down the road. https://medium.com/@tipeveryday/the-disconnected-professional-29575...
There are two value sets here: yours and the prospect's. You may value your service at $X, but if your prospect doesn't see it that way, that value does not exist. However, you do have to start off with your target value. Have a "base/best case" value, and a "bare minimum/worst case" value. Th...