Earning a decent income is dicey for online professors because of fluctuating student enrollment. Per my experience, the median compensation for an adjunct faculty member is $2,500 for a three-credit course. Some school's compensation is much less. Adjuncts who teach four classes a semester earn an average of $25,000 annually. As a result, many professors juggle multiple online teaching gigs to produce a full-time income.
Here is a list of side hustles for professors to make extra cash while maintaining their teaching load.