Best Optical Illusion See the best optical illusion of 2010, created by a mathematical engineer from Japan. Video included.
Mental Floss Where knowledge junkies get their fix. Quirky bits of information such as “5 Things You Should Know About Isaac Newton.”
Sporcle – Mentally Stimulating Diversions: Hundreds of factual trivia games such as Song Title Questions, Famous Daniels, and Books by Chapter Titles.
Dual N Back Task targets your working memory and increases fluid intelligence. You are required to remember the series of audio and visual sequences.
Conundrums Enjoy playing these puzzling, intriguing games that have no real answers.
Memory Game Players repeat a sequence of numbers in a memory challenge game.
Zuzzle One of the largest selections of puzzles, brainteasers, word games on the internet.
Mission to Learn Play learning games that aid humanitarian causes around the world.
Simon Says Remember this game from when you were a kid? Now you can play it online, by memorizing a pattern of light and sounds, then repeating it.
English as a Second Language
ESL Student Help Online writing lab help for ESL students.
ESL Learning Guide A wide range of websites providing ESL help.
ESL Business English Learn the language of business in English here.
BusinessEnglishSite.com Business English vocabulary site, created by people with many years of experience in the corporate business world.
EnglishClub.com Free tips for teachers and learners of English.