If you wish to take only one online course to learn about how to start your own venture, we would recommend you the Udacity course titled “How to Build a Startup”.
This free course is taught by Steve Blank, who is recognized for developing the Customer Development method that launched the Lean Startup movement. Lean Startup movement recognizes that startups are not smaller versions of large companies, but require their own set of processes and tools to be successful. This course introduces many concepts that will be useful for every entrepreneur.
Our key takeaway from this course is the definition of a startup. Steve Blank defines startup as a temporary organization designed to search for a repeatable and scalable business model.
The link to this learning resource is http://bit.ly/vnl0022.