One of the most in demand freelance skills of the moment is social media management. This field has a low barrier to entry and is often “on the job” training. If you have what it takes and can provide rock star results, you will likely find yourself with more work than you can handle.
This system runs what’s known as a safe list. The safe list is a database of email recipients that have given permission to be mailed making it ‘safe’ to email. Usually safe lists are communities of marketers that are mailing each others offers.