The best ways to make real money on the Internet are?

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Iv always had my doubts about making money on the internet and when you search in google on how to make money on the internet you get a load of people selling books on how to do it. Either that or people say the same things about blogging and pay per click/post sites. Im talking about making a living off the internet, ways to make serious money. I dont mind if it takes time and effort, I would just like to know where to start. So has anyone got any ideas?? Thanks