ScrollWatch is a jQuery plugin for determining active sections on the page based on viewport scrolling.
Scrolld.js is a unique open source jQuery plugin that provides a method for highly precise scrolling for pixel-perfect layouts and navigation using real-time updated data values.
Scrolld.js is specifically designed to support responsive designs and turns navigating long pages into a simple task. Scrolld.js is simple and works with just an element
windows is a handy, loosely-coupled jQuery plugin for full-screen scrolling windows.
The plugin simply opens up a handy API for position management, provides callbacks, and will allow for window snapping. No CSS is applied to the callee.