Useful Links
- Petra's official website (John Schlitt, Bob Hartman, Greg Bailey, Christian Borneo)
- CPR's official website (Greg X. Volz, John Lawry, Louie Weaver, Greg Bailey, Kirk Henderson)
- GHF's Facebook page (Greg Hough, John DeGroff, Bill Glover)
- Petraspective
- Petra Rocks My World!
- Guide to Petra (site is currently down)
- Petrafan327's YouTube channel