Cargo is a professional site building platform for designers and artists.
Gumroad is a self-publishing digital marketplace platform to sell digital services such as books, memberships, courses and other digital services.
Handlebars is a JavaScript library used to create reusable webpage templates.
jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
Open Graph is a protocol that is used to integrate any web page into the social graph.