An update to this post Feb. 14, 2010 - I do NOT recommend you sign up with any such programs. Not only do the continual same ads posting to your Twitter account annoy your followers but you could also be in danger of having your Twitter account closed....
If you have a Twitter account you really should sign up for RevTwt and earn money while you tweet. RevTwt is an advertising program that will post ads to your Twitter account and when followers click on those ads you earn money. Earning money online couldn't be any easier than RevTwt.
Are you an advertiser? Have a program, product, or business you would like to promote to 1000s of people - you must check out the great advertising packages at RevTwt!
Would love to have you FOLLOW ME ON TWITTER!