SlideRule’s reach is extensive and covers many popular education providers, like Codecademy, Khan Academy, Udemy, and MIT Open Courseware. You can browse by provider or through subjects like Computers & Technology, Business & Economics, and Law. SlideRule also has a review system so users can rate courses and help you avoid the ones that aren’t worth your time. The service is fairly new so there isn’t an overabundance of reviews yet, but as more people use it, the review system will get better. Start searching for online classes by checking the link below.