An explanation of common English usage errors and how to avoid making them.
www.wsu.edu
Oxford University Press's dictionary described with ordering
www.oed.com
Alphabetical listing of many words which are often used incorrectly.
www.wsu.edu
English language courses around the world: UK, USA, Australia, Canada,
www.edufind.com
Englishpage.com offers free English lessons with English grammar
www.englishpage.com
Online English dictionary, thesaurus and reference guide.
dictionary.reference.com
A free, searchable on-line dictionary and thesaurus, word games, a word
www.m-w.com
Comprehensive materials for intermediate to advanced ESL learners from
www.bbc.co.uk
Directory of K-12 resources for teachers. Includes lesson
www.webenglishteacher.com
The department responsible for providing advice and expertise in archaeology
www.english-heritage.org.uk