Nice compilation, Larry.
With the growing popularity of YouTube tutorials and TED talks, it seems that autodidacticism and peer-to-peer learning is rapidly replacing their more costly — and perhaps less effective counterpart — formal education. Very exciting times!
BTW, the Livemocha link re-directs to Rosetta Stone. Looks like the original site has shut down. Those of your readers interested in connecting with language exchange partners may benefit from a site not mentioned in your article: https://www.mylanguageexchange.com/. I’m sure there are many others, too.
Thanks for the great resource!