Here's an idea: we could create an Azimuth 'community' on G+. Communities make it easy for lots of people to post in one 'place', and also to segregate these posts into different classes. For example, the Mathematics community has classes of posts including:

* Math Questions
* Videos / Pictures
* Jokes

etc.

*However*, it's not clear that creating this community would help Azimuth much. For serious discussions, this forum here seems better in many ways: the ability to use LaTeX, the ability to create 'threads' of discussion, etc. Google+ seems better for announcements.