Since the Internet spans the globe, administering the law is a rather fuzzy process when it comes to the web.  It is also rather easy for more than one country to get involved in a dispute over copyright laws. 

For instance, a person who resides in the United States could post an item to their blog hosted on a server in Russia that violates the copyright of a company in Brazil.  Which country's laws are used in this case?

Sarah Bird, SEOmoz's General Counsel, posted an interesting blog post last week about the Internet and international copyright law in which she discusses the various ways the example above. 

While it is very important to note that she doesn't provide legal advice in her post, she illuminates the myriad of minutiae that can complicate legal proceedings.  It is worth a read to better understand how law is applied to the Wild Wild Web.