Peter Underwood’s Classic Lightweights site – the definitive information source
H Lloyd Cycles – Decals
Disraeli Gears. Not a Cream album, a comprehensive collection of derailleur mechs through the ages.
Speedplay Pedal Museum. Photographic record and timeline of pedal development.
Velo Retro’s Campagnolo Time Line 1930-1987
Argos Racing Cycles – Restoration
Madgetts Cycles – Restoration and wheelbuilding
Nigel Scott’s Campyoldy site for comprehensive stocks of Campagnolo parts
Hilary Stone’s site for massive stocks of classic bikes & parts from an expert.
ClassicRendezvous – Authoritative US site for all classic steel bikes.
Retrobike – UK forum.