"Sex House vs. Internet Sex" - Help with an Essay

Hi,
I need help with an essay with the title of "Sex House vs. Internet Sex". Basically this is my understanding :

Sex House : Physical, for example Playboy Mansion.
Internet Sex : Non physical, pornography.

I have no idea whether my writing direction is correct since this topic was given by the lecturer. I am not sure what comparison he is looking for. Anyway, I would appreciate anyone's point of view. Also, I am required to do analysis on both the types(ie. in terms of their business). Where will I be able to get statistics about the annual income of these two types of businesses?
Please help. Thank you.

Get written instructions from your teacher. "Sex house vs internet pornography" makes no sense unless, by "sex house" you mean brothel, which the Playboy mansion is not. Even with that change, what sort of versus are we talking about here? You've got this classed as an admission essay. That can't be right! Is this an essay for a class? What class? What, exactly, are you supposed to be comparing?

The problem is the instructor is not available. He is out of the country and he has asked for us to submit it to his secretary. Basically, this is supposed to be a written paper and it is for the subject of "Leadership & Entrepreneurship". And my topic should focus on the enterprenuer side comparing the business of these two type. Thats why I need some statistics that can help me to do the comparison. any idea will be helpful. Thank you.

wow, I think you can get something sex more than "sex" like the Gay activist. write simply about "playboy" or porno might be risky...