Hey, welcome along!
We don't really recommend sites online, we just find them ourselves, just use the ol' search bar at the top.
Hats off for actually doing a couple of explores
Yes! You are more than welcome to post your previous explores up
Take a read of [ame]http://www.derelictplaces.co.uk/main/showthread.php?t=16286[/ame] and [ame]http://www.derelictplaces.co.uk/main/showthread.php?t=17009[/ame]. These should give you a good idea on how to post a report here!
Welcome to DP, Im in plympton too, feel free to contact me, i have now been to over 50 places in plymouth and cornwall locally, could do a little explore together...