http://www.bittbox.com/photoshop/create-baseline-grid-pattern-in-cs6 [...]

https://speakerdeck.com/nathansmith/960-grid-system [...]

http://gridulator.com/ [...]

http://1200px.com/ All modern monitors (mostly wide-screen) support at least 1280 x 1024 pixel resolution. In January 2010 76% of the computers where using [...]

http://www.thegridsystem.org/ [...]

Optimal width for 1024px resolution? [...]