Apollo Leisure Guide
Review of the hilarious documentary.

PopMatters
Review: "It's more endearing than brilliant and more poignant than insightful."

American Movie official site
Official site with plot and character information.

Allwatchers American Beauty Spotlight
Very detailed analysis of the movie, and listings of similar films. Sign up to become a movie scholar on the site.

Metacritic.com
Links to reviews on other sites.