Thanks for your help.
I've tried Alamy and Shutterstock with the FZ38 and they have rejected everything I've uploaded (for various reasons). It seems like it take 10 minutes to get into the Shutterstock dashboard because of the "I am not a robot" captcha - perhaps they are psyching people up to the tedium of adding titles & tags and then spending 10 minutes trying to get the system to accept that I can actually spell Scarborough correctly.
Really - how much of this stuff is WWW bound to be shown on rubbish monitors, how much is going to be used for throw-away publications and how much is actually going to be printed out 4A0 and bigger..........