I&#x27;ve bought several courses on Udemy (which hosts some awesome content), and am part way through my second Udacity nanodegree.  These sites seem to serve slightly different purposes:<p>- Udacity: help you get a job in a new field<p>- Udemy: help you learn a new set of techniques, that can help with what you&#x27;re currently trying to do (e.g. in your current job)