The Anatomy of an Infographic
This website provides explanations of the components of infographics and five key aspects to power visualizations.
Construct Your Own Infographic
This website shows how to, step-by-step, construct an infographic in Adobe Illustrator. The instructions are fairly complete.
40 useful and creative infographics
This website links to 40 interesting infographics. At the bottom of the webpage, there are links to a site dedicated to presenting data, one that posts other cool infographics, a Yahoo Group on diagrams, and useful techniques in Adobe Illustrator.