Here's a cool thing I just found. Go to http://www.google.com/imghp and put any image in the search box. This allows you to search the internet and see where that image is being used. This is particularly useful if you are an artist and create a product with your art on it and sell it online. If someone is using your artwork (and not paying you a royalty or does not have permission) this is a way you can find them. I searched using a recent font graphic I made and it showed up in some but not all places. So while I think this will be a useful tool, like anything on the internet I would not use it as my only tool. I still think it is a good thing to know about.