Addresses ending in 'sucks.com' have become popular for so-called cybergriping sites, where dissatisfied consumers can complain about businesses and their products and services.

Especially popular griping sites in the United States include VerizonReallySucks.com and Walmartsucks.com.

[Johnson] argues persuasively that the average consumer would not confuse lucentsucks.com with a Web site sponsored by the plaintiff. Registering domain names in the form of [company name] sucks.com to provide a forum for critical commentary is not uncommon, and is part of an Internet phenomenon known as 'cybergriping.'

But everyone agrees that, as cybershopping grows, so does cybergriping.

"People are definitely looking to the Internet to complain," says Catherine Ann of Consumer Connection, which advises retailers on how to improve customer service.