Respontent is a jQuery plugin that automatically makes your user generated content responsive.
Readmore.js is a lightweight jQuery plugin for collapsing and expanding long blocks of text with "Read more" and "Close" links.
jQuery.panelSnap is a jQuery plugin that provides snapping functionality to a set of panels within your interface.
stalactite is a jQuery plugin that slowly and lazily packs the contents of an element.
Unlike most packing libraries that try to do all the math and sorting up front, stalactite takes a lazy approach and sorts each child element sequentially. This can add a sense of curation as it makes your viewer aware of the browser's decisions.
Tocify is a jQuery plugin that dynamically generates a table of contents. Tocify can be optionally styled with jQueryUI Themeroller, and optionally animated with jQuery show/hide effects.
Tocify also optionally provides support for smooth scrolling, scroll highlighting, scroll page extending, and the HTML5 pushstate API via History.js.