The Everyday Writer.

OWL (Purdue University Online Writing Lab)
(A comprehensive resource for everything from citation information to grammar and writing styles. The information is also available in downloadable and printable .pdf format for future use.)

Citation Machine
(An interactive web tool designed to assist teachers and students in modeling the proper use of information property)

Online! A Reference Guide for Using Internet Sources
(Written by Andrew Harnack and Eugene Kleppinger and published by Bedford/St. Martin's)

MLA
(Produced by the Modern Language Association. Includes how to document sources from the web. The library  has a copy of the printed manual (MLA Handbook for Writers of Research Papers, 5th ed., Ref LB 2369 .M53 1999) in Reference and on Reserve)

Cyberbee
(An excellent web page which will guide you through all types of citations)

Writing Research Papers (OWL)
(Purdue University's Online Writing Lab has all the information you need about citation styles, quoting sources, documenting online resources, paraphrasing, using statistics and much more)

Chicago Style Manual
(There is a guide based on the14th edition and adapted for use by The Ohio State University Libraries, as well as a guide from the University of Chicago.)

AIP
(American Institute of Physics Style Manual)

CBE/CSE
(Guide adapted for use by The Ohio State University Libraries)

Copyright basics
(Created by the Copyright Office (which is part of the Library of Congress) and includes an overview of the law.  It includes what copyright is, what is protected and what is not protected)

Copyright and Fairuse
(Stanford University Libraries)

Copyright Resources Online
(Yale University)

10 Big Myths About Copyright Explained
(From Cyberbee)

Copyright Website
(Provides good popular culture examples and relevant information)

Avoiding Plagiarism
(The Purdue University's Online Writing Lab has a very useful section on plagiarism)

Turnitin
(Plagiarism.org and its product to help identify plagiarism)