National Institute for Literacy (NIFL): An inter-agency collaboration at the Federal level; note their Literacy Information and Communication System.
Outreach and Technical Assistance Network (OTAN): Located in the Sacramento County Office of Education, a major force in applying the benefits of technology to adult education; check out their Web Farm.
National Center for Adult Literacy: Located in the University of Pennsylvania; offers a number of publications on technology in adult literacy, other topics as well.