For now, here is a test link to an editable Google map: (Mods, I hope this is OK)
https://maps.google.com/maps/ms?msid=204239868097270912660.0004debcfb5a52c556116&msa=0&ll=50.148746,-5.19104&spn=0.750636,2.113495
You will need to sign in to Google before you can edit the map.
Simply find the location you have photographed, drop the pin to the relevant place and add your name in the description window.
If you want to, you can also hyperlink your name to your image.
I have done a couple as an example - they are down in Cornwall
Hopefully it will be easy for everyone to contribute to the map. I have enabled it to be edited by anyone but the map itself is only accessible by the link. If this works, I will add the link to the opening post.
Please respect other TP Users contributions and try not to edit / delete any content other than your own. If there is already a marker in a place you have photographed, just add your name and link to the description.
Let's see if we can get right around the coastline!
Cheers
Simon