www.duolingo.com

This may not be news to many people; I came across it yesterday. It's an online interactive website that offers language instruction, inspired by the individuals who invented the captcha program. It's very friendly, and appears to offer a wide variety of languages - I started on it yesterday to try my hand at German, that I've wanted to learn for some time now. It's also got built into it a number of reward systems that make the process interesting. I presume, since it only has 55,000 followers, that it's still fairly new. The gentle reader should check it out.