http://www.english.co.uk/FoE/contents/ovr.html Crystal - the Future

http://www.otago.ac.nz/anthropology/Linguistic/Accents.html

http://www.krysstal.com/english.html

http://www.ibiblio.org/lunarbin/worldpop/

http://www.ling.upenn.edu/phono_atlas/maps/MapsNE/Map1NE.html

Northern and Southern Sound shfits American and British vowels

Canadian English - Chambers' web site

http://classweb.gmu.edu/accent

 

www.phon.ucl.ac.uk/home/estuary/

http://www.britcoun.org/english/pdf/future.pdf