Just an idea at this point - I haven't thought about how to implement it - but what about some nets for folks who want to learn and work on foreign languages? There is already an e-mail/penpal version of this out there, but it is very successful. So, for example, you bring together English Speaking and Spanish speaking hams who want to learn more of each other's languages. The advantage of this over e-mails is that you obviously have the chance to practice speaking and get corrections on mispronunciations. Anyhow, just a thought.