MiniRefresh is a graceful HTML5 drop-down refresh plugin. No dependency, high performance, multi themes support and easy to expand.
Alton is a jQuery-powered scrolling plugin that utilizes custom vertical scrolling effects in order to present and navigate through web content in a unique manner.
Fixit jQuery plugin can be used to fix the element at a certain position when the webpage is scrolled and the element is to be hidden, so that the element stay visible on the webpage.
t-scroll is a modern reveal-on-scroll library with useful options and animations.
The scroll monitor allows you to receive events when elements enter or exit a viewport. It does this using watcher objects, which watch an element and trigger events.