Hi Jo and Jackie,
FYI: Princeton University launched a new Social Media Site last year. They have over 80 Social Media platforms across their Institution.
In the guidelines section have a look at Rights, Rules and Responsibility and also Tech policy. They also have a best practice blog.
I know it’s probably too detailed for what you need but it may help you get started.
Cheers,
Bobbi Aralica
LISMN Pty. Ltd.
