The ‘net is alive and well with plagiarism. Some people are simply too lazy to apply themselves and write their own copy. The victims of this plagiarism sometimes give up the ghost and simply take as part and parcel of being on the World Wide Web. But there are remedies, some are straightforward and some are complicated, but all of them are worth exploring.
I’ll stick to type content at this point as the image side is a more complicated issue. Two pieces of advice I would give if you have images that you want to protect. For a well snapped image it’s a bit defeatist, but watermark your images. It’s not a huge deal for single images as it can be done using any amount of free software on the net. For larger quantities, I’d suggest using a php script. This takes the images from one folder, stamps them and outputs them to another folder.