Interesting Websites:
1. http://en.wikipedia.org/wiki/American_English
Wikipedia is a good site to have an introduction about American English in the sense that it gives us informations about the history, the vocabulary, the morphology and phonology of the US. English. Moreover, it offers sources, notes and external links on the subject.
2. http://www.americannationalcorpus.org/
American National Corpus presents definitions and nice examples of the American English. Through this site you can observe words, phrases and constructs that are recurrent in the American English.
3.. http://www.uiowa.edu/~acadtech/phonetics/english/frameset.html
This page is about English phonetics and there is a list of the sounds of US English. The categories are divided in consonants (manner, place, voice) and vowels (monophthongs and diphthongs). It is interesting for users who want to learn about American English pronunciation.
4. http://www.ldc.upenn.edu/cgi-bin/aesl/aesl
The site cointains pronunciations that were captured in individual audio files for more than 50.000 of the most common words in English. It is nice to mention that the words were extracted from newswire and telephone conversation and that each word was read by an adult female, native speaker of American English in a quiet recording studio. Really nice!
A Good Book online:
The book American English by Zoltán Kovecses presents descriptions of the American variety of English and also provides British-American comparisons.
