Rule of Thirds/Golden Means

Imagine your format divided into thirds both horizontally and vertically (this is where a grid comes in handy). The intersections of these imaginary lines suggest four options for placing the center of interest for good composition. The option you select depends upon the subject, your colors, direction and depth and how you would like that subject to be presented. If you are designing for web and are using 100% width, remember that your "rule of thirds" will be shot, since different browsers and resolutions will vary your layout. You can use a table with defined widths to overcome this problem.