HP differences UK vs. US versions

Differences:
http://www.hp-lexicon.org/about/books/differences.html

Philosopher’s Stone:
http://www.hp-lexicon.org/about/books/ps/differences-ps.html

Chamber of Secrets:
http://www.hp-lexicon.org/about/books/cs/differences-cs.html

Prisoner of Azkaban:
http://www.hp-lexicon.org/about/books/pa/differences-pa.html

Goblet of Fire:
http://www.hp-lexicon.org/about/books/gf/differences-gf.html

Order of the Phoenix:
http://www.hp-lexicon.org/about/books/op/differences-op.html

Half-Blood Prince:
http://www.hp-lexicon.org/about/books/hbp/differences-hbp.html