Writing Labs & Writing Centers on the Web: A list located at Purdue University. The list is limited to those sources that the writing center has found to provide on-line resources for writers and researchers.

Guide to Grammar and Writing: A useful resource from Capital Community Technical College, which includes 75 computer-graded quizzes, numerous handouts on writing and style (from basic to advanced), an "Ask Grammar" feature, and a section called Principles of Composition, containing sample essays for the various traditional modes of composition.

• Merriam-Webster’s Online Collegiate Dictionary

• your Dictionary.com: include specialty dictionaries and dictionaries for different languages

• Roget’s Thesaurus

• Roget's II: The New Thesaurus

• OneLook Dictionaries: use this site to search 55 scientific, technical, or medical indexed dictionaries

• Strunk and White’s Elements of Style