Penzance Sailing Club - my home sailing club, based next to some of the best sailing waters in the UK.

RYA - Royal Yachting Association.
RNLI - Royal National Lifeboat Institution.
HM Coastguard
BMC - The British Mountain Council.
British Waterways - the operators of the Crinan and Caledonian Canals. 

Ellen Macarthur - In 2001 Ellen brought sailing into the headlines by sailing single-handed around the world. Before this amongst other things, sailing single-handed around Britain. 
Roger Oliver - This year sees Roger's second trip around Britain in his Sadler 25, this time taking in Ireland as well.
Karen Hodges - In 2002 she followed in the tracks of Ellen Macarthur sailing anti-clockwise around Britain. 

Three Peaks Yacht Race - the annual race up the three highest mountains of England, Wales and Scotland.

Easy Tide - Online Tidal Predictions. 
UK Hydrographical Office - the UK government organization responsible for producing the nation's charts.
Imray - the publishers of many of the charts we carry on Silverwind. 
Ordnance Survey - the UK's mapping authority. 
Met Office - the UK Metrological Office.