http://www.lapasserelle.com/lm/
http://www.sover.net/~rschrull/gbla.html
http://www.maan-ctr.org/train/language.htm
http://www.bilc.co.uk/esp.html
http://www.educa.com.ar/idiomas/abs/wel_engl.htm
http://www.ling.lancs.ac.uk/iele/prosper.html
http://antpc1.ice.ous.ac.jp/Abs&Sums/ESParticle.html
http://www.eslcafe.com/discussion/wwwboard9/messages/7.html
http://www.holmesglen.vic.edu.au/courses/detail/CLP07.HTM
http://babel.uoregon.edu/aei/esp/tcis.html