Earn Extra Income Online

Why do paid survey companies pay you?How much can I expect to earn and what are the rewards I can get?Can I earn enough from to quit my regular job?How many surveys can I expect to get per month?What should I do when I join a Survey site?Why do they ask for my personal information?How do I know a survey is going on?How will I get paid for taking a survey and who will pay me?Why does it say I am not qualified for the survey after answering a few questions?Is there any software which will help me...