A very easy to use, cross platform jQuery UI library that's still small in size, has the features you need and doesn't get in your way.
A plugin to animate a selection of elements in a waveing way, from one side to the other, a little bit like a wave, hence the name.
A jQuery Plugin to replace an element with an other element in a fadeing, sliding animation.
A plugin to fade in or out a selection of elments in a living way (randomly delayed and with random speeds).
A plugin to switch content visibility based on the selected option of a select. Use the full power of jQuery to define your affected elements.
A plugin to generate clickable default tags to populate a textfield that can contain additional non-default tags.
A plugin to select one or more array or form entries visually, for example to filter a list or replace a multiselect form element.
A jQuery plugin to hide elements from a list or similar structure that exceeds a specific amount of entries. Additionaly the plugin adds a control to show those elements (or hide them again).
A jQuery plugin to add notes below textareas and input fields based on regex patterns.
A jQuery plugin that automatically creates an anchors navigation for certain elements (for example H2) inside a container element (div, body whatever ...). It automatically generates the anchors and can even make them numbered. And the whole thing is of course fully styleable through CSS.
A jQuery plugin to add a random class from a selection of classes to an element.
A jQuery plugin to remove any containing elements that overflow the selected element. Perfect for elements with a fixed size and dynamic content.