students can ask and answer questions 24 hours a day, 7 days per week. • Piazza was founded by Pooja Sankar in 2009, while she was a student in Stanford’s business school, and launched in 2011. • It is an online study network, which works something like a hybrid between a wiki and a discussion board. • In addition, Piazza provides the ability to host polls, post class resources, syllabi and other helpful information.