jquery-tiny-pubsub0.7.0A really, really, REALLY tiny pub/sub implementation for jQuery.
scrollama3.2.0Lightweight scrollytelling library using IntersectionObserver
ScrollTrigger1.0.6Triggers classes on HTML elements based on the scroll position. It makes use of requestAnimationFrame so it doesn't jack the users scroll, that way the user / browser keeps their original scroll behaviour. Animations run when the browser is ready for it.