Note: I am not an attorney. The following are generalizations only based on my study of copyright law and are not meant to be construed as legal advice. If you have a question, consult a competent attorney specializing in copyrights and intellectual property law.
Your material must meet the three criteria set down by the copyright statutes:
A tangible medium may include committing it to paper, stone tablet, fabric, computer screen, computer disk, on-line media (newsgroups, web sites) or any other medium which has a concrete form.
You may not copyright an idea, method, title, fact, or a short phrase.
Copyright 1996-2002, Martha Beth Lewis, Ph.D.