Class Marker - build on-line quizzes - http://www.classmarker.com/
Hot Potatoe - The Hot Potatoes suite includes six applications, enabling you to create interactive multiple-choice, short-answer, jumbled-sentence, crossword, matching/ordering and gap-fill exercises - http://web.uvic.ca/hrd/halfbaked/
Quiz Center - Create quizzes, save HTMLs, assign to students, and grade - http://school.discoveryeducation.com/quizcenter/quizcenter.html
Quizinator - Create and store quizzes and worksheets - http://www.quizinator.com
QuizStar - Create quizzes - http://quizstar.4teachers.org/