Online tutoring compared to an Internet marketing? Any related experiences?

It depends on your skills actually. Sometimes, luck does play a factor. As for compensation, I think Internet marketing has the higher earning ceiling but teaching is easier to do for me.

If you are good at Internet marketing then you should go for that and enjoy your time

I really want to know all the details too..

I agree with the others that it depends on your skill. I'm an experienced foreign language teacher and this is the first time I'm doing the online teaching. I'm having a hard time preparing for the lessons because there are just some activities that you can easily do in person but can't online. So, it'll take a lot of time and effort just preparing. Because if you don't teach effectively, students will go look for a better one. As for the compensation, I'd say it is good. But, experience and credentials are factors for a better compensation. So this is a view from teaching side. I'm pretty sure there are other users willing to share their experiences in marketing. Why not try both and see which one works for you? :)