Revit User's Manual/Introduction

It is intended that this manual be a more conversational alternative to the Autodesk Revit Building Help file that comes with the program. It is also intended to be better organized and more on topic than the forums at revitcity or Autodesk User Group International. Practical examples are welcome; in trying to be all things to all users, the official manuals often miss solving real problems. For example, how does one create a residential truss? Please contribute your topics with these principles in mind.