Lifehack.org has a great article on how not to plagiarize.
Some highlights:

Don’t paste formatted text into your papers.
Don’t use writing that is much better than your own.
Don’t copy entries from Wikipedia.
Don’t hand in a bunch of really well-written stuff that has nothing to do with the course or the assignment

It might be worth-while to discuss with [...]

Youtube has plenty of educational content, from Photoshop tutorials to great speeches from history, just about ever content area can be found on the site. Unfortunately, a ton of inappropriate content can be found too. How can you keep the good yet protect your students from the bad?
TeacherTube may be the answer. It’s a youtube-like [...]