If you are interested in historical archaeology, the papers from the Conference on Historic Site Archaeology are available online, 15 volumes dating from 1967 to 1980.

http://scholarcommons.sc.edu/archanth_historic_site_arch_conf_papers/

Other papers from The South Carolina Institute of Archaeology and Anthropology (SCIAA) are also available online, from Annual Reports, to Archaeology Month Posters, to Occasional Papers.

http://scholarcommons.sc.edu/archanth/