Added Atomic Design

Author: davidtheclark

README.md

@@ -22,7 +22,8 @@ Newest on top, oldest on bottom.
 - [Used and Abused -- CSS Inheritance and Our Misuse of the Cascade](http://www.phase2technology.com/blog/used-and-abused-css-inheritance-and-our-misuse-of-the-cascade/?utm_source=CSS-Weekly&utm_campaign=Issue-127&utm_medium=RSS), by Micah Godbolt (8/25/14)
 - [Enduring CSS: writing style sheets for rapidly changing, long-lived projects](http://benfrain.com/enduring-css-writing-style-sheets-rapidly-changing-long-lived-projects), by Ben Frain (8/7/14)
 - [Challenging CSS Best Practices](http://www.smashingmagazine.com/2013/10/21/challenging-css-best-practices-atomic-approach/) -- suggesting a unique approach (all utility classes) the author calls Atomic CSS -- by Thierry Koblentz (10/21/13)
-- [MindBEMding - getting your head around BEM syntax](http://csswizardry.com/2013/01/mindbemding-getting-your-head-round-bem-syntax/), by Harry Roberts (1/25/2013)
+- [Atomic Design](http://bradfrostweb.com/blog/post/atomic-web-design/), by Brad Frost (6/102/13) -- which isn't really about *CSS code*, exactly; but so many people have found it a valuable way to think about frontend component architecture that it fits in well with this list.
+- [MindBEMding - getting your head around BEM syntax](http://csswizardry.com/2013/01/mindbemding-getting-your-head-round-bem-syntax/), by Harry Roberts (1/25/13)
 - [CSS Architecture](http://philipwalton.com/articles/css-architecture/), by Philip Walton (11/16/12)
 - [SOLID CSS](http://blog.millermedeiros.com/solid-css/), by Miller Medeiros (9/10/12)
 - [Shoot to kill: CSS selector intent](http://csswizardry.com/2012/07/shoot-to-kill-css-selector-intent/), by Harry Roberts (7/17/12)