The following websites can provide additional resources to help with areas such as organization, grammar and usage, and source citations.  Each link is followed by a brief description of the website and the particular areas on which it focuses.

OVERALL TOPICS

http://owl.english.purdue.edu/owl/

The Purdue University Online Writing Lab offers information, examples and exercises about a wide variety of topics, including Thesis Statements, Organization, Grammar and Usage, Research, and Citing Sources.  All sections are printable.

http://bcs.bedfordstmartins.com/rules6e/Player/pages/Main.aspx

The Rules for Writers site at DianaHacker.com provides online exercises and quizzes on Thesis Statements, Style, Audience, Grammar, Parts of Speech, Punctuation, Research, and Citing Sources.

GRAMMAR AND USAGE

http://grammar-quizzes.com/

Grammar-Quizzes.com includes a wide variety of grammar topics, with examples, visuals, and practice exercises.  There are 18 areas of grammar study overall, plus a review and a section on general writing rules.

http://grammar.ccc.commnet.edu/grammar/index2.htm

The Guide to Grammar and Writing contains an index of Parts of Speech, Sentence Parts, Sentence Types, Kinds of Punctuation, and Grammar Rules.  Each entry contains rules, examples, visuals, and online quizzes.

ENGLISH AS A SECOND LANGUAGE

http://manythings.org

ManyThings.org is designed for beginning ESL learners.  The site includes vocabulary lists, grammar exercises and quizzes, and online learning games and activities.

http://englishpage.com/

EnglishPage.com is designed for intermediate to advanced ESL learners.  The site features online English grammar lessons, an online grammar book, and an online English > Foreign Languages dictionary.