The University of Minnesota has created a short, interactive online workshops on e-professionalism and using social media. There are two different versions: one for students and one for staff and faculty. Both focus on how to create a positive professional online presence, critical thinking about the information you post online, and privacy/legal issues in an educational context.
You can access the workshops at https://e-professionalism.umn.edu/.
Both versions start with this video to get you thinking about social media: