Teaching Rhetoric
Visual Rhetoric (Purdue OWL)
More greatness from the best online writing lab: "These resources will help students and teachers better understand the use of visual elements for rhetorical purposes."
A Periodic Table of Visualization Methods
Visual literacy and ways of conveying ideas graphically. Cool.
The Ad Council
Public service announcements on social issues.
Composition & the Elements of Visual Design
A vocabulary for talking about visuals: line, shape, form, color, texture, balance, the rule of thirds...
Vintage ads
A treasure-trove of past advertising, both charming and horrifying.