Sure, getting fit and losing weight remains the most popular New Year’s Resolution, but what about exercising your mental muscles? Whether you want to master physics or increase your musical appreciation, MIT wants you to learn for FREE with their full-length online courses. Their Open Coursewear catalog features more than 2150 undergraduate courses! These are also perfect study aides for high school or college aged children looking to review for exams. Stream the courses to a Roku player and watch them from your TV or on the go!
In a similar vein, other sites also offer free full-length courses: the exact same courses taught on campus! Though they do not provide official college degrees or course credit, they do give certificates of completion.
khanacademy.org: features video lessons on a wide variety of topics
edx.org: features MIT, Harvard, and Berkeley classes
coursera.org: features courses from many esteemed colleges/universities
udacity.com: features instructors from excellent universities