Can you promote more than 1
 

If you are using content you purchase and not sponsor content -- can you promote more than 1 sponsor on the same free site? Such as 2 niche (ie. oral) sites by 2 different sponsors.

Yes you can.
Some have argued that it's not the best idea - better to focus on fully selling one site than half-selling two.
I've had mixed results doing it both ways, but I generally only promote one site. Sometimes a link to a niche webcam page can be productive, too.

But yes, you definately can promote two different sponsors if it's your own content.
:)