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FunBrain is the #1 site for online educational games for kids of all ages. (math, grammar, science, spelling, history)

Math games, fun math lessons, puzzles and brain benders, flash cards for addition, subtraction, multiplication and division, geometry, fractals and polyhedra

Coolmath has a ton of cool math games and puzzles, lots of really clear math lessons (arithmetic, fractions, decimals, algebra, etc.), fractals, geometry, tessellations and more. Tons of very cool math stuff for kids, teens, parents and teachers too!

Groundbreaking developments in science, space, technology, health, and the environment

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Think faster, focus better, and remember more with BrainHQ—clinically proven brain training exercises brought to you by Posit Science.

Online shopping from the earth's biggest selection of books, magazines, music, DVDs, videos, electronics, computers, software, apparel & accessories, shoes, jewelry, tools & hardware, housewares, furniture, sporting goods, beauty & person...

Rap Genius is a rap lyrics encyclopedia that anyone can edit. Discover the meaning of rap...in clickable popups!

Situated on the southern New England coast, a highly selective private liberal arts college on a 750-acre arboretum campus, with 1900 students from across the country and throughout the world.

AARP is a membership organization leading positive social change and delivering value to people age 50 and over through information, advocacy and service.