this is what i have so far: any additions are welcome.
VW Bus & Vanagon Clubs

All Sorts of VWs
----------------
Volkswagen Club of America                     $10/year,
P. O. Box 154                                  little magazine sent
North Aurora, IL 60542                         out every other month

1968-1991 Buses & Vanagons
--------------------------
LiMBO (Late Model Bus Owners, international)    $18/year,
P. O. Box 3293                                  newsletter sent out
Plymouth, MA 02361-3293                         every other month
(508) 746-9573

also: Harris Upham, editor of the newsletter, The Transporter, can be
reached via email at  hupham @ fscvax.fsc.mass.edu

1949-1967 Microbuses
--------------------
NEATO  (North East Association of Transporter Owners)
P. O. Box 4190              <yeah, i know: new mexico ain't Northeast!
Albuquerque, NM 87196       ... they moved.>
(505) 268-2220              chapters in AZ, CA, FL, GA, MO, New England,
                            NM, OR, TX, WA

SOTO  (Society of Transporter Owners)   monthly newsletter.
P. O. Box 3555                          send $1 for more info and
Walnut Creek, CA 94598                  sample newsletter
(510) 937-SOTO

Westfalia Campers
-----------------
Westfalia Wanderers               for owners of VW Campmobiles or
13 W. Montgomery St.              Vanagon Campers
Ilion, NY 13357

Westfalia Owners Travel Club      $??/year, newletter.
Site 13, Box 2, RR #4             "strictly a travel clug, and not
Hampton, NEW BRUNSWICK            one for restoring older vans ..."
E0G 1Z0  CANADA

........................................................................
Volkswagen Product Service Publications  (800) 544-8021
c/o Dyment Distribution Services         (216) 572-0725 8am-9pm EST
P.O. Box 360740                          visa/mc accepted
Strongsville, OH 44136

the owner's manual you want is:
VOM CA-xxxx Camper (supplement to Vanagon) ..... $7.50
VOM VA-xxxx Vanagon ............................ $7.50
       where xxxx is the year you want (1981, 1979, etc.). vanagons are
       available for 1980-1991, but buses are only available for 1979.
free index/catalog is order # VI
free subscription to service bulletins is order # VBS 88
   (but you have to call back each year to renew ... and they don't tell
   you that it ran out).
........................................................................
Companies making VW bus conversions (in the u.s.)
Country Homes Campers             (408) 441-6280
493 Reynolds Circle               (408) 441-6282 FAX
San Jose, CA  95112               makes camper kits for vanagons/EV,
                                  which can be removed for weekday
                                  people hauling duties. pop-tops also.

Adventurewagen

........................................................................
Snap-On Tools                This will put you in touch with the
1-800-866-5748               Snap-On customer direct order program.

Delta Six Industries, Inc.   vw camper parts
5517 Cleon Avenue            replacement parts for Westfalia campers
North Hollywood, CA 91601
(818) 760-4214

Recycled Inc (Parts Place?)  vw parts
2300 N. Opdyke Rd.           lots of vanagon parts
Auburn Hills, MI 48326       ** neat catalog **
(810) 373-2300               Phone Hours: M-F 0830-1830, Sat 0900-1600
(810) 373-5950 FAX

Wolf Automotive Products     Nose bra for vanagons
121 N. Sullivan Street       ("Custom Auto Nose Bra")
Santa Ana, CA 92703          $??
(714) 835-2126

Bus Boys, INC.               Bus Parts, early and late model
18595 East Lake Blvd
Redding, CA 96003
(800) 792-2697
(916)-244-1616

Rocky Mountain Motorworks    vw parts
Orders:     (800) 544-5359
Cust. Svc.: (800) 544-1065
Fax:        (800) 544-1064
Catalog:    (800) 544-1066

Parts is Parts               vw parts
Utah
(801) 328-8447

Rapid Parts                  vw parts
321 Route 59                 M-S 0900-1800 hours
P.O.Box 371
Tallman, NY 10982
(914) 357-6611

Auto Expert Products         Gastester CO meters
2574 NW 29th Drive           Eezbleed pressure brake bleeding system
Boca Raton, FL 33434
(800) 795-6958

Direct Buyer Service         Trip Computers, performance computer,
P. O. Box 55303              cruise control, security systems,
Portland, OR 97238
(206) 944-5230

Gasoline Auxilliary Heaters:
  Automotive Heater Technology, Inc. new and used auto gas heaters,
  Ark Mirvis                    German and American; remanufatured
  31 Byram Bay Road             and new Eberspacher and Webasto heaters;
  Hopatcong, NJ 06843           repair service; one-year guarantee.
  (201) 398-6363

Jim Ellis VW                 vw parts, ask for Joe Baisle
Atlanta, GA                  <Service Dept.: (404) 458-6811>
(800) 653-5547

MSDS                         (Martin Schneider Designed Systems)
2643 Rosemead BL.            Porsche engine kits for vanagons/buses,
South El Monte, CA 91733     brake rotors/stainless steel brake hoses
(818) 448-8726               for vanagons, 'Panzer Brush Guard' - for
(818) 448-0706 FAX           mounting winches on vanagons (or just
                             keeping rocks and bushes out of your
                             grill/headlights)

Weddle Engineering           Bus/Vanagon Transmissions rebuilt, parts,
P. O. Box 15466              Lock-Right limited slip differential kit
Long Beach,  CA  90815       for Bus/Vanagon transmissions ($300+labor)
(310) 598-2731

Type II Enterprises          vanagon floor mats (one-piece front,
11024 Mercantile Avenue      one-piece middle, one-piece cargo/trunk)
Stanton, CA 90680            universal power window kits, muffler for
(714) 895-1164               buses, other stuff for buses/vanagons
                             (mostly buses)

Automotive Performance Systems  koni, sachs, kamei accessories, bilstein
1464 North Hudley Street        oil coolers, recaro seats, vdo, hella
Anaheim, CA 92806-1382

O J Rallye Automotive        Bilstein, Cibie, Hella, Koni, Marchal, VDO
P. O. Box 540                (has quite a few discontinued models/items)
Plymouth, WI 53073
(414) 893-2531

High Performance Distributors  discontinued Koni shocks
1755 Mission Road
So. San Francisco, CA 94080
(415) 755-3350
fax: (415) 756-3350

PUMA                        (Performance Unlimited Motoring Accessories)
11192 Prouty Rd.            Hella lighting & accessories, catalogs (of
Concord, OH 44077           Hella replacement parts for Audi/Porsche/VW/
(216) 354-4403              MB/Saab/etc.)
(800) 333-7862

Stainless Steel Brakes Corp.  Doughnut Gas Tank, item # A2900 - $70,
11470 Main Road               little metal spare gas tank that fits into
Clarence, NY 14031            the spare tire (1.5 gallons) under the
(716) 759-8666                front of the vanagon.

Z-Products                     camper curtains, DIY camper interiors,
30625 S. W. Boones Ferry Road  camper pop-top replacement fabric &
Wilsonville, OR 97070          weather seals
(800) 331-9027
(503) 682-1267

Gene Berg                    item # GB 6790, Vanagon short shift kit,
1725 North Lime              $20. shortens that 2nd-3rd gear rowing
Orange, CA 92665             distance. well worth the money. FOLLOW THE
(714) 998-7500               INSTRUCTIONS!

Neward Enterprises, Inc.        Mityvac brake bleeding system
P. O. Box 725
Rancho Cucamonga, CA 91730-0725
(714) 987-8975
(800) 648-9822

Apec Foreign Parts Inc.           the guy who works the counter is named
727 Yale                          Jorg ("Yorg").
Houston, TX 77007
(713) 880-0988

Crutchfield                       1-800-955-3000
1 Crutchfield Park                car stereos, antenna, stuff like that
Charlottesville, VA 22906         free catalog

Beverly Hills Motoring Accessories
200 South Robertson Blvd.            mostly overpriced stuff for rich
Beverly Hills, CA 90211-2811         kids' cars, but the only place i've
(800) 421-0911                       found to get Wheelskins leather
(310) 657-4800                       steering wheel covers.
=======================================================================
Oil Analysis

Analysts, Inc.                mail-in kit costs about $25 for small
3075 Corners North Court      orders
Norcross, GA 30071
(404) 448-5235
(800) 241-6315
(404) 448-5918 Fax

Cleveland Tech                mail-in kit costs about $12.
(800) 726-5400

Aviation Lubrication          ask for George Morrison
Groveport, OH
(800) 666-6457
----------------------------------------------------------------------
Wilson's                    vw junkyard, specializing in vw parts &
P. O. Box 180               service. e.g.: 1971-1991 bus/vanagon steel
Lexington, OK 73051         wheels - $25 each (+shp)
(800) 347-2847 (BUGS)       (405) 527-2344
----------------------------------------------------------------------
Campbell-Nelson VW          vw dealer & junkyard
Edmonds, WA                 (near Seattle)
(800) 552-2999
(206) 524-6600              advertises in European Cars
----------------------------------------------------------------------
Hella                        (404) 631-7500
201 Kelly Drive              (800) 247-5924
P.O.Box 2665
Peachtree City, GA 30269

Various Retail outlets for Hella products:
Mail Order Houses:
--------------------------------------------------
CA   Automotive Performance Sys.      800-423-3623
MN   Big Wheel Rossi/APSO                          (612) 452.7484
MO*  Imparts Limited                  800-325-9043
NY   Wilco                            800-521-0094
OH*  Performance Unlimited (PUMA)     800-333-7862
PA   Keystone Automotive              800-288-6727

Warehouse Distributors
--------------------------------------------------
CA   Competition Parts Wh. (San Jose)              (408) 434-9844
CA   Import Auto Warehouse (San Mateo)             (415) 343-1661
CA   Neuman Dist. (Anaheim)                        (714) 630-0588
CA   Off-Road Whs. (San Diego)                     (619) 565-7792
CA   Performance Marketing (Santa Ana)             (714) 835-0292
CA   Performance Products (Van Nuys)               (818) 787-7500
CA   Woodland Center Auto Supply (San Rafael)      (415) 454-8281
CO   Lighthouse (also: LA, AZ, OR, WA, and         (303) 722-5879 CO
                San Diego, Hayward, CA)            (213) 749-5031 LA
                                                   (602) 258-6220 AZ
                                                   (503) 286-7130 OR
                                                   (206) 467-1620 WA
                                                   (619) 263-4428 SD,CA
                                                   (510) 783-8910 HW,CA
CO   Import Parts Whse. Inc. (Denver)              (303) 825-2000
CO   Neoplan USA (Lamar)                           (719) 336-3256
GA   Postell Assoc. / Racer (Roswell)              (404) 998-7777
GA*  Automod of Atlanta                            (404) 233-6116
IL   F&W                              800-323-5241
IN   NAPA/Belkamp                                  (317) 244-7241
IN   Burnstine's Dist. (Elkhart)                   (219) 293-1571
KS   Reliable Automotive (also: MN, TX)            (913) 722-2540
KY   National Supply CO. (Bowling Green)           (502) 781-2732
MA   Ellis, Inc. (Boston)                          (617) 782-4777
ME   V.I.P. Auto Center (Lewiston)                 (207) 784-5423
NC   Autosport Gallery (Raleigh)                   (919) 872-2002
NH   Bavarian Auto Parts (New Market)              (603) 679-2002
NJ   Dons Speed Shp., Inc. (Edison)                (201) 287-5200
NJ   H. L. Dalis (Long Island City)                (718) 361-8700
NJ   Mothers Perf. Center (Lodi)                   (201) 478-0800
NY   American Specialty                            (516) 435-4555
NY   Custom Spares Ltd. (Briarcliffe Manor)        (914) 923-2525
OH   Euclid Foreign Motors (Cleveland)             (216) 481-9200
OR   Automotive Prod. (Portland)                   (503) 234-5241
PA   National Discount Auto                        (215) 997-1300
PA   Autoradio USA, Inc. (Phila.)     800-523-4530
TX   Awesome Trans. (Houston)                      (713) 469-8900
TX   Krasne Corp (El Paso)                         (915) 542-1959
US   Pep Boys                         800-873-7269
VA   Lee's Custom Trip                             (703) 569-1788
VA   Northern Virginia Supply (Springfield)        (703) 569-7177
VA   Truckers Toy Stores (Richmond)                (804) 272-4321
WA   Geon Automotive (Tacoma)                      (206) 475-9421
WA   Northwest Off-Road (Bellingham)               (206) 676-1200
WI   Voland Supply (Kiel)                          (414) 773-2416

Canada.............................
ALB  Acklands Automotive (Edmonton)                (403) 451-1282
ALB  Scona Springs & Steering (Edmonton)           (403) 433-1471
BC   Chieftain Auto Parts (Prince George)          (604) 562-1258
BC   Deckers Auto (Burnaby)                        (604) 433-1243
BC   Dix Distributors (Coquitlam)                  (604) 525-3399
BC   Lordco Parts Ltd.                             (604) 467-1581
BC   United Automotive Dist.                       (604) 291-7766
ONT  Auto Dynamica, Inc. (Beamsville)              (416) 945-1010
ONT  Exotic Motoring Acc. (Scarborough)            (416) 754-3374
ONT  Karbelt Speed & Custom (Toronto)              (416) 487-5271
ONT  Perf. Imprv. Speed. Sh. (Toronto)             (416) 259-9656
QUE  Autolectra (Montreal)                         (514) 342-1044
QUE  Bourgeois Acc. Auto's (Montreal)              (514) 397-0536
QUE  Robert Thibert, Inc. (Mercier)                (514) 691-1062