Atomize by Quarkly - Library for creating atomic react components
Lax.js - Create beautiful & smooth animations when you scroll
Bulma - Bulma is an open source CSS framework based on Flexbox and built with Sass. It's 100% responsive, fully modular, and available for free.
ScrollMagic - The jQuery plugin for magical scroll interactions.
Circle.so - Bring together your discussions, memberships, and content. Integrate a thriving community wherever your audience is, all under your own brand.
WOW.js - Animate elements on-scroll to catch attention. Such Magic.