Bootstrap TouchSpin is a mobile and touch friendly input spinner component for Bootstrap 3. It supports the mousewheel and the up/down keys.    

Toolbar.Js allows you to quickly create tooltip style toolbars for use in web applications and websites. The toolbar is easily customisable using the twitter bootstrap icons and provides flexability around the toolbars display and number of icons.   Toolbar.Js - Features: Straightforward implementation with simple options Can run as many toolbars as required Toolbars can be attached to any element required Toobar icons are easily customised through the popular twitter bootstrap framework

Selectric is a jQuery plugin designed to help at stylizing and manipulating HTML selects   Selectric - Features: Keyboard navigation (Up/Down/Left/Right/Word search) Easily customizable Pretty lightweight (3,5KB minified and less than 2KB minified/gzip) Options box always stay visible Doesn't rely on external libraries (besides jQuery) Word search works with western latin characters set (e.g.: á, ñ, ç...)    

jQuery.masterblaster is a nice and tidy tag manager.    

jQuery Tooltipify plugin creates a slide in, stylable tooltip to replace the default browser tooltip. The show and hide events are customizable.  This tooltip plugin has display awareness and also responds to the window resize event. It supports html content by using the content property.    

AutoJS is a library to continuously autocomplete textarea based on a standard dictionary. Dictionary has been deviced based on researches and linguistic methods, keeping an eye on minimizing the size of the library. Complete project is written in plain js, with no external dependencies, and it's size is reduced to mere 6kb.    

Tag Manager is a jQuery plugin to create tag input fields, which works nicely with Twitter Typeahead.js and Twitter Bootstrap.    

Bootstrap Tour makes it quick and easy to build your product tours with Twitter bootstrap popovers.    

PowerTip features a very flexible design that is easy to customize, gives you a number of different ways to use the tooltips, has APIs for developers, and supports adding complex data to tooltips. It is being actively developed and maintained, and provides a very fluid user experience.    

Simpletoolip is a Jquery plugin, thought to insert short tooltips to any element of your website more easily.   Simpletoolip - Features: Jquery based Minimal configuration 12 functional positions no extra html structures, use "title" attribute cross-browser lightweight and fast download, less than 8Kb