Whice kinds of Internet-earning do you take part in?

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The Internet is go to all over the world,surfing on internet is easy. So many people become working by net,do part time job and earn money on the internet. I am one of them,but do you know,beside Mylot(earning by writing),their have many other ways.Such as,earn by youown website and you blog,get paid to click ads,get paid to sign up,get to paid surf,surveys,and so on. Do you ever did these kind of Internet-earning? And did get some money from them? Which kind is you love?