Plagiarism is a rampant problem on campuses and has been discussed in depth at mine. I was on a committee that discussed it, and I have taught quite a few instruction sessions on plagiarism.
So I found this article from The Chronicle of Higher Education particularly interesting. Apparently, students don't consider it cheating if they use technological methods, such as a graphing calculator with equations stored on it.
It's also interesting that professors often overlook it. It does make sense that people who cheat will ultimately do poorly on tests, but still. Really? What has happened to higher education?
And lastly, I think a call to standardize punishment for cheating is in order. My campus has an honor code and a system of enforcement. However, it doesn't get at the different types of plagiarism - unintentional, lesser plagiarism, full-blown plagiarism, etc - so professors often handle it in class and don't report it. This also results in inconsistencies across courses and frequent cheaters not getting reprimanded (well, I'd assume that latter happens, but I haven't heard of any situations).