Fourth one is Mginger - INDIA ONLY

In this program all you have to do is subscribe for mobile advertisement. This site will market for advertisers and whenever they have customers they will send the advertisement on the mobile phones of all the member. So you can get paid for only reading SMS. The good thing here is you can have a network of people who you refered to this and they can do the same. So your amount will grow exponentially
http://www.mginger.com/index.jsp?inviteId=137417