One of the chief complaint you hear from website visitors is, “Why don’t you have more pictures/images on this page?”. Well, in most cases it’s largely a matter of not having the resources. Most of us don’t have the expertise to create a new image. Sure, we can take pictures, but editing it with original content to create a new image that goes along with text is beyond most folks.
So, the natural inclination is to “borrow” someone else’s work and post it to our own site.
Now, while this is easy to do (right-click anyone), I suggest you think about what it is you are about to do. Specifically, stealing someone else’s copyrighted work. I know, I know. “I just need the image”, you say. Or, “It’s perfect for me.” Of course it is. It’s also frought with pitfalls that should make you think twice, besides the aforementioned copyright issues.
You could also make the mistake of simply linking to the image from the other site without saving a copy to your own. Why is this a problem. Well, the other guy could decide to edit, change or remove his image. For an example, read this post.
If you are going to run a website, you should also take time to invest in the tools to edit images (often freely available) or a stock photo website subscription. (I use iStockphoto.com. No, I’m not an affiliate and I didn’t stay at a Holiday Inn last night.) Either way, you not only avoid taking someone’s work but also being embarrassed if they change the image. Trust me, some people can be downright mean or intent on making you life difficult at best if they discover you are stealing their online content.
[Update] I should also mention that you can obtain images at Flickr.com as well. Search for an image by entering related keywords. Just make sure that image is not also copyrighted by the owner. Many of them on Flickr are made available without such limitations by using a Creative Commons License.

