I’m not going to start my own forum when there are some many good one already out there. Here are a few that I check for info.
rangerovers.net
http://www.rangerovers.net/forum/

 
fullfatrr.com
http://www.fullfatrr.com/forum/

Hate the name, love the site.
Rovers North Forums
http://forums.roversnorth.com/
RRSPORT.CO.UK – Forums
http://www.rrsport.co.uk/

UK Based RR Sport Board
Australian Land Rover Owners
http://www.aulro.com/afvb/
carspyshots.net
http://www.carspyshots.net/

This site is great for any make or model.