If, among your new year's promises, you vowed to learn a second language, the time to start is now. No bleating about finding the right teacher. No mumbling about first paying off the credit card. The year has begun! The good news is that it's possible to learn a language online---for nothing. The web---courtesy of YouTube, Google Video and Blinkx---is hosting a range of DIY language courses. DIY language teachers - that is, enthusiastic amateurs - have uploaded the courses, so be warned that competency varies.