These are some links to sites I find particularly interesting. Some are Skybolt specific, some aren't, but they're all about airplanes (in one way or another.)

Biplane Builder's Hangar–dedicated mail list for people building bipes.

Brad's Skybolt site

Rudi's Skybolt site

Hatz Homepage

Jim Kimball Enterprises–home of the Pitts Model 12

Valley Soaring Club

NTSB Accident Reports

The Muscle Biplane Homepage

Aberle Custom Aircraft

Kent White's website

Culp Special site

Darin's Model 12 website

West System epoxy pages