Bushcraftusa.com is a very well moderated and friendly forum. They offer free online bushcraft classes and the members range from car campers to 'naked in the woods' types! I find the level of knowledge and instruction to be excellent. You will likely find a number of members from here over there as well.
They don't have zombie/TEOTWAWKI discussions. If that is your goal you are likely better off looking elsewhere. From what I see prepping talk is limited to natural disaster scenarios.
It is well worth checking out. Hopefully we'll see ya there.
http://bushcraftusa.com/forum/index.php