Test Prep Review is an online source for free, online practice tests. Students can practice for the ACT, SAT & PSAT to name a few. Check out this site and start practicing today!! www.testprepreview.com
Spark Notes is another online source for free practice tests for the ACT and SAT. In addition to practice tests, they also give you great test strategies for each section of the ACT/SAT. Check it out at http://www.sparknotes.com/testprep