Joyce Valenza so I'm going to credit her. If you've ever wondered how to cite a Tweet in your written work, the MLA now has guidelines for how to do it. You can read the guidelines here.
Applications for Education
If you're writing a paper for your own course work and need to include opinions from other educators in that paper, ask on Twitter and you might all of the opinions you need and then some. Now, thanks to the MLA, there is a defined way to cite those Tweets.