Wilmer Writing Center Online Writing Lab Quick Links Writing the Paper The Writing Process Organizing Your Paper Audience and Purpose Using Outlines Grammar A Quick Guide to Punctuation Active and Passive Voice Apostrophes Clauses Commas, Semicolons, and Colons Comma Splices and Fused Sentences Commonly Confused Words Fragments Modifiers Nouns Parallelism Pronouns Subject – Verb Agreement Citations Citation Style Chemistry Citation Statement on Plagiarism Evidence Questions to ask about evidence. Where can one find evidence? What is the difference between primary sources and secondary sources? What should students do with evidence? When should a student quote, summarize or paraphrase? Drafting a Document Choosing a Subject Writing an Essay Freewriting Introductions and Thesis Statements Conclusions Proofreading Your Paper External Links The Purdue OWL (Online Writing Lab) The Writing Center – University of North Carolina at Chapel Hill