Copyright made clear
Copyright law is a vehicle that protects the creators of original works. You can’t copyright a title, an idea or a fact. But you can copyright any other tangible, fixed, creative expression. It’s the creative expression of the ideas or the facts that is protectable. The law recognizes that you own those rights, and therefore have the ability to decide exactly how they’re going to be used for reproduction or to create derivative works or to display in public, or to publicly perform. It’s important to copyright your articles, or to maintain your copyright, to at least not give away, or lose, the rights to control how that work is used in the future, so that you can determine how it’s used for your lifetime plus 70 years.
For more clarity on what copyright is and how you can make it work for you, check out Legal Issues You Must Know When Writing Articles For Fee or For Free.

