Social game developers like Playdom and Zynga have been branching out of the American market by localizing their popular games for the European and Asian markets, in part to dilute their dependency on Facebook. Some of the factors they probably pay attention to when deciding which countries to localize for are eCPMs. According to information released by SupersonicAds, Nordic countries are amongst the top twenty countries globally where virtual currency monetization by offers yields highest eCPMs. Read more after the jump.

There are a few important metrics which social developers definitely pay attention to when it comes to monetizing social games: ARPU (avg rev. per user) and ARPPU (avg rev. per paying user), among other things. Another piece of data that’s important is eCPM: revenue per thousand impressions. Offer companies and other payment platforms gather this information from a thousand visitors to the offer page, of which some perform certain actions like participating in offers, and that ultimately yields a number coined eCPM.

Internal data gathered by SupersonicAds suggests that virtual currency ARPUs in Finland, at $10.2 annually is the highest among all countries tested, with Norway and Sweden ranking 6th and 11th , accordingly. This fact is doubly astounding keeping in mind that ARPU data includes both paying and nonpaying users.

The Nordics also rank high above industry averages on percentage of paying users. According to SupersonicAds, Sweden, Denmark and Finland were ranked 2nd 3rd and 5th (with Norway ranking 10th) out of 25 countries. Nordic online user engagement is not limited to games. Three out of four Nordic countries (Norway, Denmark and Sweden) rank among the top 10 countries in terms of Facebook penetration. Moreover, according to a recent study, users in Norway are among the top social media users worldwide in awareness and frequency of use.

With Nordic users turning out to be such avid social media fans and top spending gamers, it is no wonder that Nordic audiences also yield high bids from quality brand advertisers worldwide.

A while back SupersonicAds integrated with Livegamer as we covered here on socialtimes. The company’s customizable, plug and play payment platform gives consumers the opportunity to earn virtual currency by completing targeted offers, watching video ads, and engaging with leading brands. The company is headquartered in London, UK, with satellite offices in the US and Israel.

*Source: SupersonicAds data, June 2010