LivemochaRosetta Stone has acquired Seattle-based Livemocha, an online language-learning community, for $8.5 million in cash.

Steve Swad (President and CEO,  Rosetta Stone): We are in the process of transforming Rosetta Stone to be the most dynamic and ubiquitous technology-based learning platform in the world.

Livemocha uses crowd-sourcing to drive content development and social engagement. The Livemocha community has over 16 million people, including language experts, instructors and multi-linguists, interacting online, from 195 different countries, according to a statement from Rosetta Stone.