Common Errors in English http://www.wsu.edu/~brians/errors/index.html
Guide to Grammar and Style By Jack Lynch http://andromeda.rutgers.edu/~jlynch/Writing/index.html
THE SLOT: A Spot for Copy Editors http://www.theslot.com/
Guide to Grammar and Writing http://grammar.ccc.commnet.edu/grammar/
International Grammar Police Branch Office http://www.webspawner.com/users/GrammarPol/
UsingEnglish.com Learning English (ESL) Online http://www.usingenglish.com/
December 27, 2007, I found the "Grammar Police" at http://www.grammarpolice.org/ When I clicked on it just now, (Aug. 16, 2008) I got the message, "WebbleYou Blog Network has shut down. Contact us if you have any remaining business with us, or if you are interested in purchasing one of our domain names." I wonder if they have moved?
Urban Dictionary, "Urban Dictionary is the slang dictionary you wrote. Define your world". www.urbandictionary.com
Double - Tongued Dictionary "A growing lexicon of fringe English, focusing on slang, jargon, and new words." http://www.doubletongued.org/
Synonym.com Synonyms Thesaurus with Antonyms & Definitions http://www.synonym.com/
English Synonym Dictionary (searchable dictionary of English Synonyms) http://dico.isc.cnrs.fr/dico/en/search
Synonyms Search (some adult content) http://vancouver-webpages.com/synonyms.html
English Idioms and Idiomatic Expressions- UsingEnglish.com http://www.usingenglish.com/reference/idioms/
Idioms and phrases The Free Dictionary by Farlex http://idioms.thefreedictionary.com/
Sayings and Phrases - meanings and origins http://www.phrases.org.uk/meanings/
How Not To Write A Novel by Howard Mittelmark and Sandra Newman "200 Classic Mistakes and How to Avoid Them-- A Misstep-by-Misstep Guide" http://www.hownottowriteanovel.com/ (This is basically an advertisement blog for their book, but it should give you some idea of what the book is like. This will help you decide if you want to purchase it or not.)
Behind the Name - the Etymology and History of First Names http://www.behindthename.com/ Great website! Allows you to not only search for a specific name and learn its meaning; but it also lets you search for meanings in order to find a name.
NamepediA: the Name Database including given and family names http://www.namepedia.org/
Latin Phrases Dictionary Latin Phrases and Quotes http://latin-phrases.co.uk/dictionary/
Latin to English from "Words" by William Whitaker http://www.archives.nd.edu/cgi-bin/words.exe There's also a English to Latin search on there.
Latvian English Dictionary Latvian Engish_Dictionary Dictionary-Babylon http://www.babylon.com/dictionary/48852/Latvian-English_Dictionary
This was Words From Latin http://modena.intergate.ca/personal/gslj/wordsfromlatin.html I had saved the URL Feb. 8, 2008. It worked then obviously. I can't seem to get it to work today. (August 16, 2008) Sometimes my computer won't go to websites even though they are working. Don't know if the website is gone or if I can't access it at the moment.
http://www.yofast.org/ This was the YoFast Language Translation Network. I had saved the URL on Feb. 10, 2008. I can't seem to get it to work today. (August 16, 2008) They did have, "Free Language Translator: English - French - German - Italian - Portuguese - Spanish.".
Scribendi Editing/Proofreading/Editors/Proofreaders/ http://www.scribendi.com/