Benchprep is a comprehensive online test prep resource, providing reading and review materials, practice problems, and entire practice tests for dozens of standardized exams. Whatever standardized exam you are preparing for, they probably have it, from AP exams, college and graduate school admission exams, and licensing and civil service exams to prep courses on college subjects. A monthly or lifetime subscription gets you access to your preparation materials on the web or on your smartphone so you can study any time, anywhere. They also have a blog with dozens of helpful, informative articles. If you have any standardized exams in your future, or want extra supplementary resources for your college courses, Benchprep is a valuable resource.