I didn't know Quantcast operated an ad network. Interesting. In quantitative terms, how accurate is your inference based data? On a different note, I have mixe

I didn't know Quantcast operated an ad network. Interesting. In quantitative terms, how accurate is your inference based data? On a different note, I have mixed feelings about exchanges cus I feel they overly commoditize inventory. Whilst that may be okay for large sites, it's disastrous for small sites. IMHO, the better strategy is to either join a vertical ad network or sell directly to niche advertisers.