This looks to be really cool. I would also recommend watching Luis von Ahn's TED Talk. The basic idea is that you can utilize millions of people to translate documents, in exchange for teaching them the source language, while they perform the translation task.
"How can people translate documents from languages they do not understand?" you might ask. Think of it like bit torrent, you don't need the full source file to share what you have, you just need to know that what you have can be verified and shared. User expertise can be detected by the system and work distributed accordingly.