Mobile payments for digital goods is a growing trend, with gaming sites and social networks creating huge demand for user-friendly purchase mechanisms.

IAC/Mindspark’s Zwinky, an online avatar site that integrates with social networks, and online games publisher Aeria Games have tapped Zong to enable mobile payments.

Mobile payments for virtual goods and services sold via online gaming and social-networking sites will continue to grow in 2010, according to a Boku executive.