So if you are not sure which pay per click networks to advertise on or even start with, this post should help.
Google Adwords Search
By far the biggest and in many respects best PPC Network is Google Adwords. Your ads can run beside relevant search result or on the Display network where your ads will show on other people’s websites. The disadvantage with Adwords is that it has the highest amount of competition right so you will end up paying a higher cost per click than on other networks.
Vancouver Pay Per Click recommends starting with Adwords for search first. The amount of traffic is high and very targeted which helps with testing keywords and ad copy. Within 4 of 6 weeks of advertising on Adwords search you will have enough historical data to build out your account. I have seen accounts go from 1 campaign with a few hundred keywords to 20 campaigns with tens of thousands of keywords in as little as a month. The first month requires a lot of work and expertise to prevent you from going in the wrong direction.
Adcenter & YSM