Thanks for the details on rent-a-list Sean!

I looked into it and it uses hits4pay.com to get the emails out, but yeah, if it's profitable for you, then it's definitely worth giving it a try.

As for using it for split testing, are you able to change your copy mid-stream to test it, or do you just run several versions of the same ad to see which was more effective (say sending one version to 1,000 people and another to another 1,000)?

Thanks,
Jennifer