Recommendations for playing online?

I was wondering what people do for playing microscope online. I saw a couple similar threads with some ideas. I'll probably use Google plus for video chatting. I saw some ideas for organizing the notes, including spreadsheets (like through Google, where everybody can update and see updates) or through PowerPoint (which seems intriguing. Each slide is a different Era and then you organize from there? Could work well!)

Any other ideas?