- Career One Stop - Career seekers can use self-assessments to gauge their skill levels and find where improvement is needed. Career One Stop is sponsored by the U. S. Department of Labor, Employment and Training Administration.
- Barrons - With a subscription to Barron's Test Prep, one can obtain success on SAT, PSAT and ACT exams through practice test-taking under realistic conditions, determine what you got wrong on the practice tests, and practice until perfect!
- GED Testing Service - Locate testing centers, practice online, and find and compare your scores.
- Kaplan - Full array of tests and online classes for graduate admission, college admission, medical and nursing licensing, other health sciences, bar review, English language/TOEFFEL, Grades K-8, and many other educational and professional tests. Some test preparation is free of charge.
- Petersons - Provides test preparation for school admission, graduate programs, executive training, and private secondary schools.
- Quizlet - Students can make their own flashcards or choose from millions of flash cards sets created by others. But that's just the beginning - once you've got flashcards, you can use several study modes including multiple choice tests and study games. You can add images and listen to audio, and even study on the go with one of dozens of Quizlet-compatible mobile apps.