If you wanted to invite people to Chat "to hold a chat" you could use
Chatzy
http://www.chatzy.com
You can set up a private chat where people are "invited" via their email address to join the chat. It is private among those who want to participate. Those interested could PM you with their email (or one that they set up
just for using "Chatzy" and dedicated to that use.
If you were to want to create an online magazine there are several you can use free.
ISSUU
https://issuu.com/
and
MagCloud (a favorite of a Graphic Designer friend of mine)
http://www.magcloud.com/
The online magazine could be published twice a month and probably serve the Nomadic RV Community well.
Just a matter of getting a group together to cover the various categories of the lifestyle that would be identified during chats. The magazine would need to determine what it "is to be" (such as Travel", "Photography", "alternate lifestyle", or whatever) It can always have a links page with each publication and
an "archive" of past publications be kept for those who would come to this later and want to go back and read from the beginning.
There would certainly be categories for contributors such as articles, photos, cartoons, jokes, trivia, etc.
And the first few publications would be used to help the magazine find it's "voice" and "target audience".
As this would draw the "Techno-Gypsies" interest and entertain their letters to the editor (via email) as a way of learning what is on their minds. What drives their choices, their passions, their struggles, their happiness.
The bearing this will have on the future with those who will follow this path may be detected with a publication
that rally's those presently in this lifestyle. It should also encompass an international view as well.