There are a few question there.
I think we probably share the same sorts of issues you are dealing with. I don't know a lot about this particular area--it's not a field of my expertise--but with regard to your comments that a lot of veterans do not gravitate towards social networking sites, I think it depends a lot on whether they are inclined to be involved in that sort of thing.
I think the approach in our defence force is to look at different ways of engaging with veterans. Certainly the particular social networking site I was talking about, www.touchbase.gov.au, is one idea that will cater to some veterans who are inclined to be involved in social networking. However, it's not going to be for everybody, which is why our Department of Veterans' Affairs is looking at other ways they can reach out to the veterans community to try to engage them.
My guess is that we're struggling with the same issues that you are. One technique does not capture everybody; it does not cater for everyone.