When you create original content, it is automatically copyrighted, but you should know about copyrights and how to specifically mark your work. Also, establishing the date of creation is very important.
The basis for copyright law in the USA is found in the United States Constitution in Article 1, Section 8, Clause 8 as follows:
To promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries.
The first copyright law was the Copyright Act of 1790. We are currently operating under the Copyright of 1976 as amended.
Copyrights have a term of the life of the author plus 70 years. We Boomers can thank Sonny Bono (Sonny and Cher) for this. The Copyright Term Extension Act of 1998--alternatively known as the Sonny Bono Copyright Term Extension Act set the current term of copyrights.
The best way to approach using any information that you have not created yourself is to consider that it is copyrighted.
To copyright an item, you must establish a dated record of some type when you first created the item so you can prove the date of the copyright if someone challenges you. The earliest date will get the copyright. Before computers, a technique was to write the piece and have it notarized or witnessed. Another technique was to enclose the item in an envelope and mail it to yourself. The postmark established the date.
Now we have computers that record the date of file creation for anything we record on them. This date becomes the date of the copyright.
John V. W. Howe is an entrepreneur, author, inventor, patent holder, husband, father, and grandfather. He has been involved in entrepreneurial activities for over 40 years. He founded http://www.boomer-ezine.com and http://www.retirement-jobs-online.com to help Boomers (baby boomers) become entrepreneurs when they retire.