jQuery Hotkeys is a plug-in that lets you easily add and remove handlers for keyboard events anywhere in your code supporting almost any key combination.
KeyboardJS is a library for binding to keys or key combos. It can be used as both a standalone library or an AMD module.
jwerty is a JS lib which allows you to bind, fire and assert key combination strings against elements and events. It normalises the poor std api into something easy to use and clear.
jKey works with jQuery, so you can select any applicable element to set a key command to. Basically, any element that can be focused on such as an input or textarea can have a key command applied to it.
A simple jQuery plugin to easily map keyboard characters to links or functions.
Ascensor is a jquery plugin which aims to train and adapt content according to an elevator system.