VW Pub:   Dutch site with nice Vanagon pick-ups and info (in Dutch)
Black Sunshine:   Dutch site with very nice Vanagon Crewcab pickup
Harald's Hot Wheel:   German site with very nice Vanagon Crewcab pickup
Beepworld:   German site with a few Doka crewcab pictures
Jorg's Tristar:   German site with good tech info (in German) and pictures
Gruenesauto:   German site with tons of Vanagon pictures (also in English)
Rico's VW T3 Place:   Dutch site with nice Vanagon pictures
Bussenmanie:   nice Dutch site with info and pictures about converting a
Vanagon into a camper; has other stuff too  (in Dutch and English)
Veeweetjes:   Dutch site about miniatures of buses, Vanagons and Eurovans with lots of good info and pictures (in Dutch and English)
W. Rieuwerts:   Dutch site about converting a VW LT35 into a 5 person camper;  the site is still under construction, but looks promising
JW Bus Page:   Dutch site with lots of nice tech info and pictures (in Dutch and English)
Volkswagen LT 4 x 4:   Dutch site with nice pictures of LT45 truck (like a heavy-duty Vanagon doublecab)
Gertcars:   Dutch site with tons of general VW pictures, but it has some nice Vanagon stuff in it if you look enough; really cool concept vehicles too
Eure IG-T3:  German site with Vanagon info (in German) and pictures
Selanty: Dutch site about T3 pickup with a few pictures and info (in Dutch)

Bell's website:  inline 4 cylinder conversion and other general info, upgrades
David's Volkswagen Home Page:  some engine swap information
Graze the Pavement:  nice site with Subaru conversion info and upgrades
Weirdstuffwemake:  pictures of Subaru installation
Kennedy Engineered Products (KEP):  adapters, kits, and clutches for all types of conversions
MSDS Inc:  kits for Porsche and small-block Chevy power
Audi V-6 Power:  nice conversion
Roadcow:  the FIRST good documentation of the Subaru conversion with good stories and travel pictures
Sean's Vanagon Site:  TIICO (VW inline 4 cylinder) conversion
Stretch Vanagon:  VW inline 4 cylinder conversion and upgrades
SVX Vanagon Yahoo Group:  Subaru flat-6 cylinder in Vanagon
Turbovan Yahoo Group:  all types of Vanagon conversions (not just turbos)
Subaruvanagon Yahoo Group:   Subaru motors in Vanagons (large group)
TIICO:  VW inline 4 cylinder  motor in Vanagon
Tom's VW Pages:  tons of really good info and pictures on all types of
subjects involving Vanagons
Urabus:  good site about converting to Subaru power
Blaine's Westfalia:  inline 4 cylinder conversion and other neat stuff
V6-30V-Umbau:  German site with pictures of Audi V-6 in Vanagon
Small Car Performance:  good source for Subaru conversion parts and
pictures
GTI Swap:   great "How to" info on conversion to GTI motor in Vanagon
Bob Bellanca: 1.9L turbo diesel motor swap into a van, good info, no pics
Yahoo Groups TDI Conversion:   list with chat, info, pictures and tech