I'm new to the cpa game... figured I would start with the free sign up route but I'm really not sure what place offers good "Free Sign Up" type programs. So far I have only seen maxbounty having having campaigns for people to enter there email or name... something simple (I app'ed for mb so hope that goes well)
I use alot of those type offers, check my site below and if you have any questions please ask. I would suggest Instant Dollarz, CPA Storm, Lead Pub, CPA Lead among others.
Check out the link in my sig. I have had great success with all of the programs in my link. If you have any questions feel free to let me know.
As far as I know, any decent CPA program should be free for a Publisher. You just have to spend the time it takes to get into the system and figure out their interface, etc! Click on the link in my signature for a start. All of our programs are great earners. In know you'll do well, good luck! If you want to email me it's daneka.satadsmarketdotcom
Don't just sit back and wait. Want to become a MaxBounty publisher? Give your affiliate manager a call. You should have been instructed to call a number post sign up as an affiliate. Speaking with an A.M. is a requirement for getting into the network, but beyond that, your new network contact will have a wealth of information for you about which campaigns convert highest and ideally which offers match your target audience.