The BrickBoard - Volvo mail.
Bruce Thuel-Chassaigne's Web Page - One man's P1800.
engine-books.com - Where to buy Engine Service, by Gary Lewis, a superb textbook on rebuilding automotive engines of all kinds. Covers teardown, measuring, machining, inspection, diagnosis, repair, assembly, installation and break-in, among other things. Truly comprehensive.
Genuine Classic Parts - Licensed by Volvo to distribute parts for vintage Volvos. Site includes parts manuals for 1800s and other Volvos.
IPD Company, Inc. - Respected Volvo parts catalog company.
Joshua Ostroff's Photos of Classic Volvos
Karl Målberg's Volvo 1800 Picture Gallery - Many photos, owner's manual, more.
McMaster-Carr Catalog - Industrial supplies, from raw materials to component parts. Not Volvo-specific.
Old Air Products - Recommended supplier of auto air conditioning parts. Online catalog, friendly sales staff.
P1800 E-Mail List - Broad-based support group for Volvo 1800 owners.
Pictures of Volvos - You'll like this.
Volvo Club of America Texas Chapter
Volvo Lovers' Webring - Volvo links.
V-Classics Interactive Magazine
Kirk's Volvo Page - Including a list of Volvo1800s by chassis number.
Washington Volvo Club - Washington, D.C.