SAT and ACT Practice
- A customized practice ground for those of you who are preparing for the SAT or ACT and want to accelerate your preparation progress.
- http://www.onlinetestprep.com/engine/default1.asp

Practice ACT at ACT-SAT-prep
- ACT-SAT-prep contains a great number of in-depth ACT questions and answers for your ACT preparation.
- http://www.act-sat-prep.com

Study Flash Cards
- Education company specializing in ACT, SAT, GRE and TOEFL Study Flash Cards for test preparation and study aids.
- http://www.testinfo.net/act.htm

TestU
- TestU creates customized preparation courses based on an individual student's strengths and weaknesses for the SAT, ACT, PSAT, FCAT, MCAS, NY Regents, CAHSEE, TAAS, TAKS, MEAP, and TOEFL exams.
- http://www.testu.com

ACT, Inc.
- The organization responsible for the ACT Assessment college. It manages other tests and programs related to educational/career planning and workforce development.
- http://www.act.org/