The following is a list of web sites of those classes I have seen racing at Datchet. If you feel your class should be included then please let me know.
29er	UK - http://29er.mariner.co.uk/
49er	http://49er.mariner.co.uk/
B14	http://b14.interalpha.net/
Blaze	www.blaze-sailing.org.uk
Boss	http://www.bossracing.co.uk
Buzz Class	http://www.bu22.co.uk/
Cadet Class	UK - http://www.cadetclass.org.uk International - http://www.cadetclass.com/
Contender Class	UK - http://www.sailcontender.org.uk/ International - http://ica.contenderworld.de/
Darts	http://www.dart15.com/ http://www.dart16.com/ http://www.dart18.com/
Fireball	UK - http://www.fireball-dinghy.org.uk/
Flying Fifteen Class	UK - http://www.flying15.org/gbr International - http://www.flying15.org/
British Hobie Cat Association	www.hobiecat.org.uk
British Hobie FX-1 Association	http://www.fxone.org Contacts Mike Rothery mike@fxone.org Adrian Jones adrian@fxone.org
Hobie Dragoon	http://www.dragoonsquad.co.uk RYA youth catamaran training class
Hurricane 5.9	http://www.hurricane59.com/
ISO Class	http://www.isoracing.org.uk
Laser	UK - http://www.laser.org.uk/ International - http://www.laserinternational.org/
Laser 2	UK - http://www.laser2sailing.org.uk/ International - http://www.laser2sailing.org
Laser 4000 Laser 5000	http://www.lasersailing.com/laser4000 http://www.lasersailing.com/laser5000
Miracle	http://www.miracledinghy.org/
Optimist Class	UK - http://www.optimistsailing.org.uk International - http://www.optiworld.org/
The Official RS Class Association Web Page. (featuring the RS200, RS300, RS400, RS600, RS700 & RS800)	http://www.rs-association.com/
United Kingdom Catamaran Racing Association  (UKCRA)	http://www.catamaran.co.uk
United Kingdom Wayfarer Association	http://www.wayfarer.org.uk
The following links have listings of large numbers of class association web sites.
RYA Affiliated Classes	http://www.rya.org.uk/clubs_display.cfm?region=cl
UK Dinghy Racing	http://www.ukdinghyracing.com/
UK Sailing Index	http://www.uksail.com/
Yachts & Yachting	http://www.yachtsandyachting.com/
The Sailing Source	http://sailingsource.com/