Wikipedia - American English regional differences

http://en.wikipedia.org/wiki/American_English_regional_differences

This website presents an overview of what is called General American and of English regional varieties - sometimes called accents here. These are divided into seven regions: Eastern New England; New York City and northern New Jersey; Mid-Atlantic Region (comprising Northeastern Pennsylvania, Philadelphia and the Delaware Valley, Baltimore in Maryland, Pittsburgh and Buffalo in New York); South (comprising New Orleans, Acadiana, Central and South Florida); Inland North; the Midland (comprisinf North Central American English, and St. Louis and vicinity); West (comprising California, Utah and Hawaii). It gives examples of what differentiates them, but they are usually general. The site is noteworthy because of the links it provides for most of the varieties presented. In these links there are usually more detailed information and interesting external links.