While Twitter has been cracking down on spam automation, you can still take advantage of this traffic source. If you’re still just learning how to increase website traffic, Twitter is a great platform for experimenting. You won’t need to worry about limited reach. With the help of relevant hashtags, you could reach an audience bigger than your follower count.
Nielsen (the same company that creates TV show ratings) has a research division that is similar to what survey companies do, which is gather information to help companies better market themselves to customers. Instead of having you take surveys, though, their computer and mobile panel is focused on gathering information pertaining to your “unique internet usage with people like you to build a picture of internet behavior.”
Be sure to check what kind of customer support you can expect from your affiliate program once you have signed up. Do your research online and if possible, speak to other sellers using the program to get their thoughts. Can you speak to someone via phone or Skype or do you have to wait 72 hours for email responses? Be clear on this because trust me, you will need support at one point or another.