Consider
the Numbers
n
In one reported case, an online adjunct was earning about $90,000 a year solely teaching online college courses.
Carnevale,
D. (2004). For Online Adjuncts, a Seller's Market. The
Chronicle of Higher Education.
While you need time to build up a roster of that many courses, these numbers are not outside the likely attainment of anyone who effectively manages their time and effort.