18i - Yahoo group with mailing list, chat room, and calendar of events. Focuses on the US versions of the car. - http://groups.yahoo.com/group/18i/
Alldata - Recalls and repair information for 1981-1987 models of the 18i and Sportwagon. - http://www.alldata.com/recall/make/Renault/18I;0;Sportwagon.html