Grids, Raster, Layout
960 Grid System
The 960 Grid System is an effort to streamline web development workflow by providing commonly used dimensions, based on a width of 960 pixels.
Gridmaker For Photoshop CS4
» andrewingram.net/articles/gridmaker_for_photoshop_cs4/
GridMaker is a small script for Photoshop which allows speedy development of simple grids.
Grid Designer
If you're familiar with the grid, a bit of design and basic typography, using this script should be pretty easy - most of the functions are pretty self-explanatory.
The Grid System
Made popular by the International Typographic Style movement and pioneered by legends like Josef Müller-Brockmann and Wim Crouwel, the grid is the foundation of any solid design. The Grid System is an ever-growing resource where graphic designers can learn about grid systems, the golden ratio and baseline grids.
Universal Principles of Design
» designersreviewofbooks.com/2008/12/universal-principles-of-design/
In fact, it is an academic design book but in the most positive sense of the word. Design is treated as a holistic discipline with global principles, rather than limited to a particular sub-practice, such as graphic or industrial design.
Slammer
Slammer overlays any grid you want, anywhere you want. Typographic Grids, Golden Sections, Fibonacci series or Rule of Thirds. Slammer also has Rulers, Crosshairs, Magnifier, Measurements & Screenshots.