The people from the European SharePoint Conference regularly run webinars on all aspects of SharePoint (surprisingly) and Office 365. They had a training week recently which was great (members only but registration is quick). One of the sessions was about SharePoint information archictecture from Marwan Tarek. Now, there is nothing majorly new here but it was a great summary of how to manage documents in SharePoint by thinking about the metadata and the views. Oh, I love views in SharePoint. They are so useful.
Here’s the video: