Earlier in the semester I had problems with students plagiarizing material for the class blog. I had to write up two of them as academic integrity violations.
So the three of us grading the final blog period kept a keen eye out, and we ran various bits of software. Ironically, all we discovered was someone out there who had plagiarized one of my student’s entries on the class blog. Here’s the original. And that student’s work re-posted on another site, unattributed.