Javascript
Get flash to fully experience Pearltrees
jQuery Fundamentals
With contributions by James Padolsey, Paul Irish, and others. See the GitHub repository for a complete history of contributions.
evercookie - virtually irrevocable persistent cookies
evercookie is a javascript API available that produces extremely persistent cookies in a browser. Its goal is to identify a client even after they've removed standard cookies, Flash cookies (Local Shared Objects or LSOs), and others. evercookie accomplishes this by storing the cookie data in several types of storage mechanisms that are available on the local browser. Additionally, if evercookie has found the user has removed any of the types of cookies in question, it recreates them using each mechanism available.