(CTP)

One site that allows you to earn for sign ups as well as trains you go get more sign ups (and in other important money earning methods) is CTP:

Click, Track, Profit!


Sign up at Click Track Profit

There are training resources to teach you how to "brand," create a list, use an autoresponder (and, of course, use autoresponders to build a list of followers, viewers to your interests and web pages, products, services, etc), traffic exchange surfing tips and excellent deals that CTP owners have going on with other traffic exchange owners all the time.