The new article at Smashing Magazine, though aimed at designers, is very helpful for business owners who find copyright issues confusing:
Understanding Copyright And Licenses, by David Bushell
If you are involved in buying images or fonts for the project handled by a professional graphic or web designer, or take on a do-it-yourself project, this article is a must read.
It covers the basic principles that govern copyright and licenses and explores common licenses, with examples. Here is what you will learn: copyright and licensing, what is “fair use,” what is “public domain,” legal jurisdiction, license terminology, Creative Commons, software licenses, where licenses are used, which work need a license.