149. WordPress Themes and Plug-Ins – over 1/3 of all Internet sites (including this one) use WordPress. It is an easy way to get design and operate a website. Because so many website owners and designers are on the same platform, there is a huge marketplace for WordPress themes which are basically the design templates for the site, as well as plug-ins which do a wide variety of different things from making tables, to tracking visitors, to adding links.
Many themes and plug-ins are sold online; some offer a free version that requires paying for an upgrade in order unlock the best features.
Non-technical people have made money by paying someone else to handle the coding and support, then marketing and selling the theme or plug-in.