Here are a variety of sites that may be of interest to the yachtsman.
A useful site for pictures and ideas about cruising across the Channell can be found at www.channelpilot.info
Weather to sail - information can be found here: www.metoffice.com
Since I advertise with them, thought I'd repay the compliment! www.ybw.com
A mine of information from the guardians of our sport: www.rya.org.uk
An interesting site for initial planning of an area with which you may be unfamiliar, it has 138 different harbours around the UK, as well as a wealth of information on marine businesses at the harbours: http://www.visitmyharbour.com
Torpoint Mosquito Sailing Club - one of my clubs and since they list me...! http://www.tmsc.org.uk