Peter Freitag has compiled a “cheat sheet” of cheat sheets for developers. I’ve already printed a couple of these off for use in various projects…developers will appeciate this resource.
Cheat sheets for: JavaScript, CSS, Hex Codes, HTML, XHTML, MySQL, Oracle, SQL, PHP, Cold Fusion, Ruby, JSP, Regular Expressions, JSP, Java, Python, CVS, Subversion, Unix, Vi, and more.