Coursera - provides free online courses in the fields of Computer Science; Medicine and Biology; Humanities and Social Science; Mathematics and Statistics; and Economic, Finance and Business.

MIT Open CourseWare – Over 2,000 courses from the Massachusetts Institute of Technology, including courses in Technology, Science, Economics, Mathematics, and Law.

edX – edX is a collaboration between Harvard and MIT to bring some of their signature courses to anyone with a computer. It plans to have full course offerings by fall of 2012. However, the first course is available now from MIT: Circuits and Electronics.  This class is a prototype, but will give you an idea of what is to come.

Stanford Engineering Everywhere (S.E.E.) – Take some of Stanford’s most popular engineering courses including iPhone App Development to Artificial Intelligence: Intro to Robotics. Stanford also offers many courses through iTunes - click here.

Carnegie Mellon OpenLearning – Classes are self-guided so you can learn at your own pace. Topics include Biology, Chemistry, French, Physics, Probability, and Statistics.

Webcast.Berkeley – From Astronomy to Psychology, Economics to Engineering, UC Berkeley offers audio and/or video for a variety of courses. 

Tufts Open Courseware – Classes focus on the Life Sciences. Popular courses include Human Pathology, Intro to Geographic Information Systems (GIS), and Zoological Medicine.

Johns Hopkins Bloomberg School of Public Health – Courses include topics such as Nutrition, Aging, and Genetics.

Princeton’s Archived Lectures – Videos of lectures dating back to 1999. Includes talks by director Martin Scorsese, author/artist Maurice Sendak, singer Patti Smith, Afghan President Hamid Karzai, and Secretary of State Hillary Rodham Clinton, just to name a few.

Yale Open Courses - Provides free access to a selection of introductory courses taught by distinguished teachers and scholars at Yale University. All lectures were recorded in the Yale College classroom and are available in video, audio, and text transcript formats.

A list of online learning opportunities offered by groups other than colleges and universities.

Code Academy – Learn how to write computer code by following simple exercises. Note: To use this site you must use Google Chrome, Firefox or Opera as your browser.

Khan Academy – Over 3,200 videos that cover topics ranging from arithmetic to physics, finance, and history. Learn what you want, when you want, at your own pace.

TED – Most people are familiar with the TED Talk phenomenon – it stands for Technology, Entertainment and Design -- which is a fantastic educational tool.  TED Talks are short, entertaining, educational videos on topics ranging from quantum physics to gaming theory to music.  But TED has recently launched a new initiative called TED-ED.  TED-ED has lessons from educators that have been brought to life by animators.   You can watch video lessons, take short quizzes on the subject, and find resources for further study.  You can track your progress and “flip” lessons to customize them. 

Technology Boot Camp – The Louisville Free Public Library’s own self-guided program to help individuals discover and strengthen skills to work, play, and learn online. Topics covered include photo sharing, blogging, social media and accessing library resources online.

The Faculty Project – A collection of the best professors from various academic institutions present a series of free online courses.

iTunesU – With over 500,000 free educational lectures, iTunes U is billed as the world’s largest online catalog of free education content. Download content directly to your iPad, iPhone, or iPod through your iTunes account.

At the Library – This Louisville Free Public Library podcast series features author talks, programs, and other events at the Library.