I hope you don't think I am a web geek but I love anything with rivers and the following is interesting
http://www.geograph.org.uk/photo/919046This is a data base of photos taken all over the country and one can travel N,S,E or W using the compass near the top right. Hence one can type in say "Monymusk" in the to pright box and up will come several photos of the area. Click one on the river and you can then navigate up or down the river using the compass. In addition you can open the interactive map beside the compass and all the yellow dots that appear are photos on this data base.
Sad perhaps and so I'll ensure I chat about fishing more in my subsequent posts!