The Best Cheat Sheets for Web Developers
webappers.com
webappers.com
Something I've also found helpful (when doing web scripting), is Dreamweaver's built-in syntax database that really helps speed things up as you type.
However, people who work professionally in these languages should really be able to do without them.
I only use it occasionally, and always get hit in the face by it not being Python.
"Oh "if c in string" doesn't work? Iteration isn't nice? Strings can't trim their own whitespace? Hello, haven't you ever used Python?"