Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
MemberVault - MemberVault is a flexible platform that helps you to create, deliver, and sell your services, courses, memberships, subscriptions, etc.
Ticket Tribe - Sell tickets online with no fees per ticket
Ruzuku - Ridiculously easy online courses
Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
LearnDesk - LearnDesk is an educational platform that offers a diverse range of learning material related to business, DYI, health, fitness, cooking, sports, personal development, academics, art and craft, acting, and much more.