What's in a Trademark?
Another good place to look is the U.S. Patent and Trademark Office, which includes a "Trademark Basics" site and tools to locate current and pending trademarks. For more quick tips, check out this blog I wrote in October, "Trademark Infringement: 8 Ways to Protect Your Business."
Professionals in the promotional industry are smack in the middle of the legal minefield that is trademark regulation. It's a scary place to be. But as with anything else, forewarned is forearmed. Keep abreast of intellectual property laws, do your due diligence with your clients, trust your instincts, and you and your business will safely make it out the other side.