'That adspace, it is mine!'

In the last 60 days, no fewer than 94 online properties have signed up to join the ADSDAQ, a Wall Street-style ad exchange.

New members include Raging Bull, A&E, Citadel Broadcasting, Nielsen Digital and Sports Illustrated.

The ADSDAQ has leaped 83 percent in terms of reach since August '06. Unique users also increased 91 percent, to 76.6 million in August 2007. Total impressions jumped 127 percent (five billion impressions total) during the same time period (August '06-'07).

Carissa Pelletier of Sports Illustrated vouched for the model, stating, "ADSDAQ is about predictability and control. I know the CPM. There is no revenue share guessing."