Do you have a Twitter account with a decent amount of followers? If so, I want to share with you a new program I found to earn some money with your Twitter account. It's called Ad Per Tweets. Just search for ad per tweets or click here: adpertweets.com I don't see a place to refer users, so I won't get anything for you joining.
I joined earlier today and already have $1.90 in my account for tweeting just 5 links! All you have to do is copy the ads and url's and tweet them through you Twitter account.
They pay through Paypal and I think the cash out threshold is $50. Seems like it may be possible to hit that within the month though.
I also use Sponsored Tweets and My Likes to earn a little extra from my tweets. It's really easy. All you have to do is pick which campaigns you want to tweet, then tweet them. Both programs pay a little differently, but are both equal, in my eyes.