The American Anthropological Association maintains a list of web links to anthropology sources on the open web, organized by topic.
Check out the page for other useful resources, too-- there's a list of open access journals in Anthropology, as well as listservs for the profession as well.
Sculpture by Bill Reid, 1980. Commissioned for the University of British Columbia Museum of Anthropology. Photo by Richard Droker on Flickr, used under creative commons license.