Urban areas are administratively complex, and bureaucrats are often overburdened, which means they are often working at what Herbert Simon called the bounds of their rationality. Thus, responsible bureaucrats may have little genuine knowledge of issues within their briefs that impact community members. Groups concerned with such issues may emerge in the community. Given their focus, members of such groups will have issue-related local knowledge; and probably also the time and effort to share and assemble such personal knowledge into practical and informative group proposals. This paper reviews this situation and demonstrates how simple to use and freely available socio-technical tools can be applied to support knowledge based community action.