Climbing the career ladder can be daunting. You frequently need new skills to move ahead, but it's not always practical to take time off just to get some new credentials. However, AT&T and Udacity may have just solved this conundrum by unveiling "nanodegrees:" short online courses that are designed to boost your talents without disrupting your life. The upcoming programs teach subjects like app development and data analysis over the course of six to 12 months, assuming you devote 10 hours per week; you won't have to use up vacation time just to earn a certificate. You'll even get career help in the field you're studying, so you should have a better sense of how any new talents will apply in the real world.