http://classweb.gmu.edu/accent/
"This site examines the accented speech of speakers from many different
language backgrounds reading the same sample paragraph [in English]...
Everyone who speaks a language, speaks it with an accent. A particular
accent essentially reflects a person's linguistic background. When people
listen to someone speak with a different accent from their own, they notice
the difference, and they may even make certain biased social judgments
about the speaker."