Free Online Plagiarism Detection Services

The last few days, I’ve been using TurnItIn to check my Metro students’ research papers for plagiarism.  The college pays for the service, and I started wondering what free online services are available for detecting plagiarism.  I even asked about that on Twitter but received no responses, so I did some research.  Here are the ones I found:

I haven’t tried any of these, and I’d be very interested in finding out how they worked for you.

June 26, 2013–I’ve posted an updated list here.

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