World Sailing - the International body for Sailing. This site has news about current regattas on the go worldwide, as well as to the Racing Rules, etc.
S.A. Sailing - the National Sports Federation for Sailing in South Africa
Sailing - the online Sailing magazine
InlandSailing - a local website focussing on sailing on inland waters in South Africa and elsewhere.
Yachts and Yachting - a good UK sailing magazine, with widespread dinghy class coverage.
Steve Cockerill's Rooster Sailing website - a commercial website offering items for sale for the Laser amongst others, as well as a training CD.
Tripbuzz Sailing Guide - The Ultimate Sailing Resource Guide
Other Interesting sites
Henley Midmar Yacht Club
Royal Natal Yacht Club
UK Sailmakers - this site has an interesting set of animated rules situations