http://forums.backpacker.com/
These are the forums - but the site has good info on other things. It is a magazine site but has a lot of dedicated travelers on there (if I post I'm in the Trailhead registry).
Facebook, many of the groups I'm on or seen are closed and if a member they seem to be trying to get back to their "roots" and so using it as a chat site is kinda frowned upon. Yeah I admin on one. However I think
Travelers 411 has some interesting information on there - and might be a place to post some questions as well. I'll keep my eye out for ya.
I need to resurrect the project I started the first of the year with the other mods of a list of resources for runaways (we had several at that time) but the list of places/shelters/help seem to be geared to teens (was looking at them the other day) but some may be good.
However - just as I research where I want to go --- (hopefully you are planning on taking a tablet or something that can run internet via wifi or hit the library - hehe I talk to several people here via library
) and do some research on where you plan on going and the resources in town there. Library. Soup/food kitchen if needed, medical - all sorts of things. Be one with your Google and search - there is stuff out there. There is a member here,
@Kal - hehe wherever he lands or is thinking of going - I pull up the town, look for stuff to do there, things to see, soup kitchens, sleeping arrangements if necessary - all sorts of stuff - but generally he's already done the research. It's out there.