Posted at http://www.crisscrossed.net/wp-content/uploads/2009/1/the-participatory-web.pdf, Pages 20-25 in Annamarie Matthess and Christian Kreutz, Participatory web - new potentials of ICT in rural areas, Deutsche Gesellschaft fur Technische, Zusammenarbeit (GTZ) GmbH, Eschborn, Germany. 41 pages.