Charles Halton writes about how one can avoid plagiarism. He links in his post to a set of tutorials from Duke that help students identify (and avoid) plagiarism. Good reading for all. I’m not a professor, but… oh, the stories I could tell!
And as for Bart’s presence above… one good Simpsons/academia piece of media deserves another.
Words on the Word 
I’ve sent students to the Duke site (in a previous iteration) before. Good stuff! And helpful reminder to include it in my syllabus.
But more importantly, betcha didn’t know that Bart Simpson knew his Vergil: http://www.addletters.com/pictures/bart-simpson-generator/bart-simpson-generator.php?line=Arma+virumque+cano%2C+Troiae+qui+primus+ab+oris
Ha! Very nice.