Jayne, I went and looked at the UN Online Volunteering service site you pointed at. I found it disappointing. First, it was completely unclear to me whether or not the organizations who listed volunteer opportunities had to go through any sort of screening process to be allowed to list there, and if so, what was needed to qualify.

Second, except for the UN connected offices, which had several posts, it seemed to me that this wasn't a widely used or publicized service. There were only 134 current open listings, and the number of organizations represented was far fewer, and felt like an odd sampling.

Clearly, one of the "volunteer" positions they should be advertising for is a volunteer to help them publicize the service! Surely, the UN has a long list of NGOs they collaborate with that could be called, emailed or written to, informed of this service, and invited to post-- the nabuur site looks like it's currently much more active--