Advertisers are finding different ways to advertise on the internet. It started with advertising on the web pages then on social networking sites and now on mobile social networking sites. Everyone knows about Twitter, the most successful mobile social networking and microblogging service.
In twitter world, its all about followers and followings. If you have more followers, you are a celebrity. Whether people go for a movie, or they go to the bathroom, they keep updating their followers. Its funny and I never understood twitter. One of my collegue's daughter received 1200 text messages within 5 days. After her parents realized, she was grounded. Well thats definitely mobile social networking sites.
Anyways, if you have good number of followers in Twitter and want to earn some money with your twitter account, here is a site that can pay you to put an advertisement on your twitter profile page. The website is called Twittad.com.
You signup with Twittad.com, Select your duration & price, wait for advertiser to purchase. Once you accept you need to put the ad on your profile page. Once you reach $20, you can request the payment.
Check out {ln:nw:http://www.twittad.com 'TwittAd.com}