Free practice tests for ACT, AP Classes, CLEP tests, several CTE certification areas, and much more! This site also has flashcards to help you practice.
Learning Express Library is a comprehensive, interactive online learning platform of practice tests and tutorial course series designed to help patrons--students and adult learners--succeed on academic or licensing tests. Students and patrons get immediate scoring, complete answer explanations, and an individualized analysis of test results.
Tennessee Electronic Library - free ACT practice tests - click on Test Prep to create a free personal account
FreeRice helps prepare students for the verbal portion of the SAT, and helps to "combat world hunger." The site, Freerice.com, "donates 20 grains of rice to the UN World Food Program (WFP) every time a player selects the correct definition for a particular word."
Number2.com offers students access to comprehensive free online test preparation courses for the SAT, ACT, and GRE.