In case you are not aware, but the Office 365 Network on Yammer is moving to a new platform, here is the official announcement. Come checkout Office 365 Network Preview and get your profile set up and start monitoring that platform. It looks pretty good. Based on the Yammer pin board messages, the network is moving in September.
I am actually excited because at my company the Yammer SSO was very cumbersome and now this will be a thing of the past as the new platform, built on top of Lithium social platform, allows open search and collaboration via open identity providers i.e. Live Id or O365 Identity.
Now, I still think that the best platform for answering the technical support questions is the Microsoft Office Community forum site which, unfortunately, I am only able to monitor scarcely these days. This new platform is more towards socializing with the developer team and other thought leaders for
Go and explore it now!