Our intrepid intern, D.A., takes you on a basic editing tutorial using Easy Edit Software, which comes with the Contour HD cameras.
As D.A. points out, Easy Edit is incredibly simplistic in what it can perform. It is basically limited to trimming single clips, and sending them online to the Contour (or VholdR) website.
For more advanced editing, step up to iMovie or Windows Movie Maker. Even further? Step up to Final Cut or Premiere. Look to the camarush.com blog for tutorials on those NLEs (Non-Linear Editors) as well!