I just came across CopyScape. This website hosts a useful service that allows individuals to find duplicate instances of web content. This may be useful if you are concerned about your own web content being copied and posted online by others. And thinking as a teacher, as I have students developing and designing (hopefully) original web content, this would be an excellent tool to use for the detection of plagiarism. While I am not a big proponent of policing plagiarism, if students are made aware of this service, the fact may just help as a deterrent.