Source: Website Tour with jQuery | Codrops
I find jQuery's syntax to be particularly confusing with PHP, so I'm stashing this mostly for the demo of website tour with helper tooltips, which I think is done well.
Yin & Yang -- a bunch of beautiful CSS-based themes.
Growth Hack #1: Site Speed.
The Anatomy of an Effective Homepage
15 Reasons Why Parallax Scrolling In Web Design Is Awesome - The Usabilla Blog