journals online

Hello...I teach Spanish and my question is specifically for
Spanish 4. Nuevas Vistas is the textbook we use; I would
love to hear from anyone who uses this textbook for ideas on
how to approach some of the readings. However, my specific
question is about using journals, which I've always done
with notebooks/writing. I'd love to do something different
using Google Drive or Schoology, so that the students could
interact with each other as well as me. Has anyone done
anything like this?