Paper rockets aren't good when you intend to make a real one and never get past paper (or Power Point). They are good when they're what you set out to do in the first place for a useful purpose like education or simulation.
SpeedUp's Bob Steinke has an outline for a low cost launcher textbook and simulator on the Commercial Space Wiki. It looks like it builds on Jon Goff's orbital access methodologies posts.
You can see what kinds of activities are happening by using the Recent Wiki Activity link. For example, you can see recent activity in the Prizes Group and Prizes - Rough Documents.