What is Piazza?
Piazza is not just a beautiful gathering place in Italy; it’s a free interactive Q&A space on the Web for undergraduate students and instructors. Professors from academic institutions like UC Berkeley, MIT, Harvard, and Stanford use Piazza to collaborate, instruct, and connect with their students. The founder and CEO of Piazza, Pooja Sankar, received her graduate degree in Computer Science from the University of Maryland, College Park and has worked in high tech environs such as Oacle, Kosmix, and Facebook. Her most recent endeavor brings together a community of undergraduate students and their instructors. Students receive assistance with their assignments by asking questions, working with each other, and querying their professor. Follow-up discussions about in-class topics may occur as well.
If you are an academic librarian who teaches credit classes, this could be a great resource for you.
Check it out at http://www.piazza.com