Merriam-Webster OnLine - A free, searchable on-line dictionary and thesaurus, wordgames, a word of the day, and many other English language and vocabulary reference tools and resources. www.m-w.com/ Reference: Dictionaries(5)
Logicville - Educational puzzles, brain teasers, mathematical recreations and wordgames. A resource for anagrams, cryptograms, alphametics, word puzzles, logic problems, doublets, tangrams, chess, and math quizzes. www.logicville.com/ Games: Puzzles(15)
Pogo.com - Provider of family-based games for everyone including card, board, word, trivia, bingo and casino games with no software installation, plug-ins or long download time. www.pogo.com/ Games: Video Games: Browser Based: Collections(12)
The Problem Site - Solve math problems, brainteasers, wordgames and riddles. Featuring a selection of free puzzles to help develop problem solving and lateral thinking skills. www.theproblemsite.com/ Games: Video Games: Puzzle: Browser Based(10)
Dictionary.com - Free online dictionary search, translator, word of the day, crossword puzzles and wordgames, and vocabulary learning resources for many languages. dictionary.reference.com/ Reference: Dictionaries(5)