Although I have not really ventured fully into online job opportunities, but I have attempted to some time ago. There was a time I contemplated quitting my offline work for online work, but some uncontrollable factors militated against my intentions, and along the way I had to ditch the plan at that point in time. But that does not mean I have quitted fully in going into it in the nearest future.
However, I even went as far as signing up for one of the online website that is into giving out gigs to its registered members, I am talking about Freelancer. But the problem one face on the site is that newcomers have an uphill task in convincing the employers to give them jobs, as they prefer working with old members with good reviews and recommendations.
The truth is, it's really daunting to work on such platforms, but that doesn't mean one can't succeed in working on them. With persistent and dogged desire to pursue what one love and with the grace of God, one can excel in online work.