Go check them out. There’s a free plan and badges you can put on your site to help educate your viewers (that your images aren’t free). Here’s an excerpt from their site (www.dmca.com):
DMCA .com is the global leader in DMCA Copyright Infringement Takedowns. We get stolen content removed. It’s 100% Guaranteed – or you get your money back.
DMCA .com can help with stolen blog content, videos, pictures, websites, games and more. Any country, any content, anywhere. This is what our team of professionals do everyday.
Professional takedowns starting at $199 and “Do It Yourself” takedowns starting at $10 / month!