SAT / Test Prep
College Board’s Full Practice Test – Offers the official 2012-13 SAT practice test.
Dome SAT – Features SAT preparation study guides, vocabulary drills, and practice tests; subjects include math, critical reading, essay writing, and vocabulary.
I Need a Pencil – Offers 60 lessons, 800+ practice exam questions, and a score projector (which will help predict your SAT score).
March 2 Success – A joint project by the U.S. Army and the publishers of Peterson Guides, this site offers seven full-length practice tests and 25 decks of flash cards.
ProProfs – Bills itself as “the most comprehensive collection of Free SAT study resources on the web offering practice exams, study guides, flashcards, quizzes, cram sheets, articles, links and tips to help you succeed on the SAT exam!”
Quizlet – Extensive collection of user crated flashcards for all subjects. Create your own and share them or use someone else’s cards.
Odds ‘n Sods
U.S. Census – Find curent and historical data from the US Census including population, demographics, and other number-related goodness.
CIA World Factbook – Up to the minute information on all countries from your friends at the CIA. Includes geography, populations, government information, and tons of other useful information.
Currency Converter – How much is $100 worth in Paris? This site will tell you.
Old Farmer’s Almanac – Contains all kinds of farm-y information like the best time to plant vegetables, weather history and predictions, sun and moon phases and all sorts of other old timey information.
The World Clock – What time is it in Albuquerque? How about the time in Hong Kong? This site will give you the time from all over the world.
World Flags – Flags, flags, and more flags.
World Constitutions – See how other governments run (or don’t run) their countries.