hello friends, I want to ask a question. Recently my friend asked me if we can build a site like swagbucks that pays users when they complete a certain task. If I create a social networking site like facebook which rewards you points for completing some tasks like completing surveys and sharing the surveys with their friends. For example, I am a normal user and I receive a notification whenever a survey is available for my country. When I complete a survey, I share it with my friends from same country. If they complete the survey, I get 10% of their reward. Will it become successful, if I try to build such site. I am thinking about a lots of features to add in this site. This way, people will get rewards while using a social network.