Tyler's CSS Library
Free style sheet downloads, basic and colored scrollbar tutorials, and details on submitting individual design layouts.

New York Public Library Style Guide
Offers guidelines and downloadable style sheets.

Applook.com
Non-table based W3C compliant templates for business and personal use. Includes tutorials on dynamic tabs.

Style Bank
A collection of cascading style sheets.

CSS Zen Garden
Demonstrates what can be accomplished in visual design by using cascading style sheets. Includes a collaborative on-line gallery.

Rogue Librarian CSS Example
Two column left and right hand navigation layouts and rollover menus.

NoZen
Design layouts using style sheets and details on submitting a layout.

W3C Core Styles
Ongoing project exploring shared style sheets over the Web. Includes several layout designs and details on implementation.

BlueRobot.com
Two and three column layouts, tutorials on auto-width and negative width margins, and a fix for the @import rule and how Internet Explorer phrases the rule.

TanTek: CSS Examples
Reconstruction of artwork and layouts of non-media material into a Web media layout using style sheets.

CSS Examples Index
A basic look at font type, color and spacing control, using tables with style sheets, float property, and positing.

CSS Vault
A repository of sites using cascading style sheets and a list of resources.

CSS Beauty
Design showcase with examples and website reviews.