If cheating is the pedagogy of the Internet, this could be the textbook. In addition to the usual suspects like CSS and PHP, this compilation includes some popular frameworks like jQuery and Ruby on Rails. (via Amy Pierce)
It is pretty hard to remember all the Internet Scripting Languages, luckily we have Cheat Sheets. Below are all the best Cheat Sheets for (almost) every web script available, or at least the popular scripts. Including: CSS, Ajax, HTML, XHTML, ActionScript, PHP…and the list goes on.