You should always go to the official Adsense help files for an official answer. https://www.google.com/adsense/support/bin/answer.py?hl=en&answer=32849
Oh Thanks for this thread. I was about to ask if it is ok to display Adsense and Bidvertiser at the same site. so it is YES.
yeah but separate the ads. and try to change the colors and style of both. to make them prominent and different from each other.