You can learn just about anything online these days, thanks to many online course providers. But there are too many sites to visit, and they often have similar courses on the same topic. RedHoop helps you find courses to take from among the major providers, including Coursera and Khan Acadamy.
The site is essentially a search engine for online courses on various topics, from Java to Psychology. Search for your topic of interest across Udemy, Lynda.com, Khan Academy, Coursera, edX and Udacity. You'll find top-notch courses from major universities including MIT and Harvard.
When you browse the catalogue by topic or category, you can see which ones are free, subscription-based or paid. If you search for a topic, you can filter the results by price, school and category.
Overall, it's a great way to find new classes to take (and supplement your Lifehacker University online education).