Equative, Comparative, Superlative

(You may have to cut and paste these sites into the address box above)
http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/regcom.htm
http://www.english-zone.com/grammar/compare1.html
http://www.better-english.com/grammar/comparatives.htm
http://www.better-english.com/grammar/comp2.htm
http://www.1-language.com/eslquizzes/comparatives.htm
http://www.quia.com/jq/16583.html
http://a4esl.org/q/h/vm/compsup3.html
http://a4esl.org/q/h/vm/compsup.html
http://www.eflnet.com/tutorials/adjcompsup.php
http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/regcom1.htm

Another, other, the other, the others

http://a4esl.org/q/h/vm/anothertheother.html
http://www.english-test.net/esl/learn/english/grammar/ei074/esl-test.php
http://www.english-zone.com/grammar/st-yudai.html
http://www.learnenglishfeelgood.com/lefg1_otheranother2.html
http://www.usingenglish.com/quizzes/90.html
http://www.bbc.co.uk/worldservice/learningenglish/radio/specials/1535_questionanswer/page59.shtml