jQuery
Used by 8 peoplejquery.com ↗
“I only use jQuery and don't really like any UI frameworks (including the rather disappointing jQuery UI).”
Dhanji Prasanna Interview, Hacker, ex-Googler (Wave, Plus, Search) · via Uses This 
“I'm the creator and lead developer of the jQuery JavaScript library and the author of two books on JavaScript: Pro JavaScript Techniques and Secrets of the JavaScript Ninja.”
John Resig Interview, Programmer (jQuery) · via Uses This
