Sure, I know all about the CruiseBroters. I visit almost all their meetings.
They started out some 25 years ago as a small group of american car lovers in The Hague. Now it is the biggest american car club of the Netherlands. Still based in the Hague but with members all over the Netherlands. Their Saterdag Night Cruises (that are not real cruises but meetings) are the among the biggest events in the Netherlands.
They are held in The Hague every first saterdaynight of the month form april until september. There are always +/- 700 cars there.
Their site is
http://www.cruisebrothers.nl
For pictures of the SNC's see:
http://www.chevythierry.com -> "enter" the site, click away some pop-ups, go to " meetings Benelux" and look for " Den Haag de Werf" and " SNC Den Haag"