But average CPCs decreased 6% from the same period last year. Google also, for the first time, split out CPC revenues between Google-owned sites and network partners (these include ad serves on non-Google properties, placed via AdSense for search, AdSense for content and AdMob). CPCs on Google-owned sites declined 7% year over year, while CPC revenues from network partners declined 13%. See the earnings slides.
Google SVP and CFO Patrick Pichette emphasized that the overall story extends beyond simply measuring CPCs – it includes click volumes as well, which are increasing. "You can’t look at them in isolation," he warned, adding that, over the past 18 months, Google has been working to improve quality, which impacts the growth rates particularly on its network business.
"All in all, the team is doing a good job on network and on sites," Pichette said, "and you can see that on our detailed information, where we continue to see, over the last few quarters, the gradual creeping up of CPCs."
Pichette emphasized numerous factors affecting CPCs. One is geographic dispersion.
"Geography makes a big difference in that CPCs are sometimes lower in international or emerging markets," he said. Pichette emphasized that Google has a number of localization efforts: "We focus on each country to get the maximum CPCs on a country-by-country basis."
Google's CPC rates have also been affected by mobile, where traffic has exploded, but where rates are still way cheaper than desktop, driving down the average. Google’s been aware of this problem for a while.
“Right now, mobile has not monetized as well as other forms," said the exiting Arora. It was the same point he acknowledged last quarter, saying the price of mobile inventory, which has location and context, should ideally exceed desktop inventory. But there are a lot of factors keeping the dream from reality, such as inconvenient mobile payment methods, inadequate search capabilities and poor mobile browsing experiences provided by merchants.
Still, dwindling CPC rates don’t compare favorably to Google rival Facebook’s growing Q2 CPCs. The social network’s ad partner, Nanigans, said they grew 29% year over year. (We’ll know for certain when the social network releases its quarterly earnings next week.)