Publisher’s Monetization Demystified
May 14th, 2009 by Amit Gupta No Comments »“My current partner gets me deals on CPM at $2″
“Other ad network has offered me 80% revenue share”
“I don’t want to serve any ad for less than 10 cents CPC”
These are some of the arguments we hear while having discussions with prospective publishers on monetization of their mobile sites. My two pence is that none of these statements have any meaning in isolation. Total money one can make is function of multiple parameters – Mix of CPM & CPC based ads, Avg CPC, Avg CPM, Fill Rate, CTR and Revenue Share.
For e.g., CPM of $2 with 90% fill rate is much better than CPM for $5 with 10% fill rate; 60% revenue share of $3 CPM is better than 80% revenue share of $2 CPM at same fill rates. For CPC based campaign eCPM (Effective CPM) matters the most, which is defined CTR *CPC * 1000. Once again a campaign with CPC of $0.05 with 3% CTR will make publishers more money than the same with $0.10 CPC and 1% CTR.
This being said, one of the best practices is to fill the inventory with the maximum possible CPM ads and let the CPC based ads fill the remaining inventory. At the end of the day, inventory is perishable. So there is no point in leaving out even a single opportunity to make revenue. The key is to attain very high fill rates which will automatically drive the overall revenue high. With this model you will always make maximum amount of money for yourself.
The overall revenue opportunity can be computed as
Publisher Earning = Revenue Share * [(Inventory on CPM Pricing *CPM * Fill Rate * 1000) + (Inventory on CPC Pricing * CPC * CTR * 1000)]
The incentives for ad network which work on revenue share model are fully aligned with publishers. Technology plays an important role to maximize the earnings for publishers while keeping the RoI for advertisers intact. The critical message here is that while selecting your monetization partner, look for the entire set of variables and don’t get mislead by one single parameter.


