This site provides in depth coverage
of many study guides. There is information on thinking skills, time and project management, writing and vocabulary, reading and math and memorization and test taking skills.
Number2.com - free test prep site with the ability to set up a "coaching relationship" with the student and a mentor such as a parent or anyone who will assist the student in staying on track with their study plan.
Vocabulary Builder and Math Notes - list of 5000 words with brief definitions and math notes.
Test Prep from SparkNotes for SAT, ACT, SAT Subject Tests, and AP Exams - comprehensive study guides and strategies.
College Board's practice site - contains a full SAT test for free, practice questions and study plan.
Fee-Based Test Prep
The Princeton Review - offers various options such as classroom and small group, on-line programs, and private tutoring.
Kaplan Test Prep - a variety of options and a variety of prices.