If this hasn’t happened to you yet, it’s only a matter of time: You propose an idea based on years of experience, but your client isn’t convinced and wants to think about it. Later, someone else makes the same argument with a pretty infographic published by an agency 1,000 miles away. Suddenly the client is on board!
If you’ve worked in an office for more than a few months, I’m sure you’ve seen people pull images from the Web and use them in presentations, emails, etc. Most people think nothing of it, assuming there are no legal issues because the images are only being used internally.
Unfortunately, internal use qualifies as commercial use in most circumstances. So copyrighted images require permission to use internally.*