Cruciverb
Cross Word Puzzle Links
Wordscramble
Word Puzzles
Thinks
Online Varied Word and thinking games
FunBrain Word Puzzles
Vocabulary, grammar, and spelling puzzles
Shakespeare's Sonnets
All 154 of Shakespeare's sonnets with commentary
English Reference Works by Bartleby
: Various reference works online such as Bartlett's Familiar Quotations, Roget's Thesaurus, Robert's Rules of Order and many others with internal search engines.