Over the past 8 years, more than 100,000 people from over 100 countries have participated in Google's Online Marketing Challenge. It's an online course with modules covering introductory digital marketing, search engine marketing, search advertising, display advertising, mobile, social, analytics, and video, making it one of the more comprehensive courses for beginners. However, it's also unique in that Google gives learners a $250 AdWords budget to use over a three-week period, to run an online advertising campaign for a business or not-for-profit. The most successful learners can even win prizes from Google.
One of the most sought after and highly recommended course is this one on Guide to Effective Affiliate Marketing Strategies by Kudus Adu. Not only does he focus on create an affiliate marketing strategy, he focuses on best practices to create money pages, tells you how to build your email marketing list and how to profit from it. He clearly asks people looking for ‘get rich quick strategies’ to stay away from the course. More details here.