KnightCite Citation Service
This is an easy to use citation generator. The software walks you through identifying the necessary information and then it uses what you type in to generate citations in the correct format. It cannot determine correct capitalization, however, so you must pay attention to style rules when typing.
Penn State University Libraries Citation and Writing Guides
A collection of resources compiled by Penn State Librarians on documenting your research. Includes the APA and MLA Quick Citation Guides, a great starting point.
Research and Documentation Online
This excellent site shows you how to do in-text citations and bibliographies. Many samples.
This site from the Purdue University Online Writing Lab provides good examples of how to do annotated bibliographies.
Stop by Blissell Library for books on citation styles including the Publication Manual of the American Psychological Association (6th Edition) and the MLA Handbook for Writers of Research Papers (7th Edition).