Great post by Cary Liao. I linked this last year and it’s still relevant.
“If you’re a concert photographer and have posted your work online, chances are at least one of your photos has been downloaded and reposted without your permission at some point. Photo theft on the internet is nothing new, but with the rising popularity of band fansites, fan pages, and an increasing disregard for intellectual property rights, the problem has gotten a lot worse. Read on for some simple steps you can take to protect your work, and to learn what to do if your work has been stolen.” Save Image As: Combating Internet Photo Theft « SonicShooter – Concert photography and band portraiture by Cary Liao.