SAT Test Preparation Center- free official practice questions, official SAT question of the day by email, free online practice test. http://www.collegeboard.com/student/testing/sat/prep_one/prep_one.html
SAT test dates http://www.collegeboard.com/student/testing/sat/calenfees.html
Free Preparing for the ACT and free questions http://www.actstudent.org/testprep/index.html
ACT test dates http://www.actstudent.org/regist/dates.html