Community Arts Network -- "Promoting information exchange, research and critical dialogue within the field of community-based art"
inSite05 -- Network of contemporary art programs and commissioned projects that map the liminal border zone of San Diego-Tijuana.
Public Art Fund -- New York's leading presenter of artists' projects, new commissions, and exhibitions in public spaces
Public Art in L.A. -- Huge resource created by Ruth Wallach for the USC Libraries covering every aspect of the city's public art.
Public Art Review -- Journal focused on exploring the many dimensions of public art. Complete run in the Otis Library.