RK: John Resig
One word: jQuery. John, thank you for solving all my JavaScript needs. Cross-browser support, a simple syntax, and all the plugins available have made anything that used to be nasty DHTML a thing of the past. Now I don't flinch when I need to add some sort of client-side scripting to my pages - I just write a few lines of jQuery and move on.
His personal website: http://ejohn.org/
Categories: Respect Knuckles