General
http://www.britishrowing.org
http://www.biddulph.org.uk
http://www.concept2.co.uk
Pictures
http://www.naturesimages.co.uk
http://www.bigblade.net/rowing
Kit etc
http://www.godfrey.co.uk
http://www.rock-the-boat.co.uk
http://top100.8oar.com/top100/top100in.php?id=gsrc