when i look at my earnings.. i earned only in participation.. what is?

From time to time, there are task available on the task section. You can earn more in doing task but there are limitations. There are tasks that are usually for US only. You might be lucky to see a task that you can do :D Participation includes image posting with the discussion made and responding to discussions. It is like your activeness earnings. I guess you already know you referral earnings if you have referrals