Hello permies, woofies, helpxers, couchsurfers?
I have frequented many of the above networks on my modern nomadic travels looking to be useful and find my niche as well as picking up skills from odd places and building community in the process.
Found this site to be a fresh FREE alternative to the above, Its new as yet but seems to fill a needed niche to connect people who need help and helpers!
Looks like it plays on the nomad base concept but for those who make it a point to get involved in whatever is going on at their current base.
http://www.volunteersbase.com/
churr!
Gregor