In short, Wikipedia vs the Rotorcraft Flight Manual, or your chance to make flying helicopters better and safer for everybody. All you have to do is find a subject that interests you, log in, and tell us what you know. If you don't know where to start, take a look at the private pilot maneuver guide.

p.s., you don't have to be a 30,000-hour pilot to contribute something useful. Students, what worked well for you? CFIs, how did you have to adjust your teaching techniques for different students? Yeah, it is a bit of work and no, you don't get anything from it other than a warm fuzzy feeling (unless, of course, you learn something in the process). But this industry could use some cross collaboration.