For researchers/students who aim at American publications but tend to use British spelling and terms:

1. A list of differences in word endings to be aware of.

http://oxforddictionaries.com/words/british-and-american-spelling

2.  A rather extensive list of online casino British expressions contrasted with their American equivalents.

http://oxforddictionaries.com/words/british-and-american-terms

3. An American spelling checker

http://poets.notredame.ac.jp/cgi-bin/spell

p.s.

Here is an automatic Briticiser of spelling. Just for fun.

http://us2uk.eu/index.php

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