I am looking for a private instant messenger that I can use within Canvas. Currently I ask my students to message me via Skype, but very few students actually add me there, it would be great if we could instant message from within Canvas so they wouldn't need to download and use anything extra. I am looking for something that offers private messaging so that my students can ask questions about answers on assignments/quizzes/exams and their grades. I was at Canvas Day at Penn State last week and it was mentioned that there was a presentation at InstructureCon about an embeddable instant messenger, but I haven't been able to find any additional information about it. Does anyone have any suggestions?