Piazza is a Q&A platform that lets students interact with classmates, perform edits on answers posted by other candidates, and participate in follow-up discussions.

Perusall is a social annotation tool that integrates with Bruin Learn. Perusall enables students and their instructors to collaboratively annotate and comment on PDF articles, videos, webpages, and podcasts.

Hypothesis is a tool that enables students and teachers to annotate documents and hold conversations in the margins of digital texts.