Hi, have to confess that haven't had a chance to look at War on Want - I know they have Facebook presence but not sure what else. I spoke to someone from there the other day very briefly - haven't had a huge chance to see about online initiatives but saw they have this:
http://www.waronwant.org/campaigns/financial-crisis

Also this http://www.6billionways.org.uk/about/ but it appears to be f2f in UK,

I will get back in touch with them,
Nicola