SAT College Board website: http://sat.collegeboard.org/home
SAT Testing Dates website: http://sat.collegeboard.org/register/sat-us-dates
ACT website: http://actstudent.org
ACT Testing Dates website: http://www.actstudent.org/regist/dates.html
Varsity Learning Tools: http://www.varsitytutors.com/practice-tests
> Varsity Learning Tools currently provides more than 100,000 individual problems and thousands of practice tests across 150 subjects. This includes subjects like foreign languages, history, math, and science at all levels of sophistication. We also have practice tests and problems for common standardized tests like the ACT, SAT, GRE, GMAT, LSAT, MCAT, ISEE, and SSAT.