Check out the sticky notes referenced in the group and also active on the page. This lady grew 90k customers by sharing her passion for gardening, growing herbs, etc. She has then gone on to build a shop, have video channel, podcasts, etc.
Sclipo is an online elearning & webniar platform that allows you to quickly ramp up your knowledge assets With different pay strucutres they can handle payment and booking for web events - in fact you can even have those digital assets available for on-demand. Andy up-north used Moodle - you can integrate with it