Are people making more money with porn blogs, or mainstream blogs...
 

these days?

Hard to say. Depends upon the blog. And the guy running it. There are people making a killing with mainstream blogs. There are people making a killing with porn blogs. And there are also people who make zilch with either.
Depends upon the skill of the owner and the idea behind the blog, actually.

they make more money with both

content content content

both...
if you know what you are doing, you can do great money wiht both types.

Porn blogs for me, cause i don't have any mainstream blogs. :)
But indeed you can do good with both if you know what you are doing.

I don't have any mainstream blogs too.But porno blog is better for me.
One question:What is the best way for promote blog?
Thank you