INFOMINE - Social Sciences and Humanities - http://infomine.ucr.edu/
Searchable index of thousands of sites dealing with the broad areas of social science and humanities. Easy to search and locate site and content specific to a specific area. Most sites are aimed at a college or university audience.
SOSIG: Social Science Information Gateway - http://sosig.ac.uk/welcome.html
An excellent British service, which provides thousands of links to websites, full text resources, journals and research in the social sciences. Easy to search and intended for use by the academic researcher.
Sociology: the World-Wide Web Virtual Library - http://socserv2.mcmaster.ca/w3virtsoclib/
Large well organized guide to sociology on the Internet. Includes links to associations, e-journals, directories, discussion lists and general resources. Easy to search and navigate.
Sociology Tour through Cyberspace - http://www.trinity.edu/~mkearl/index.html
The author of this site is "interested in the potential of this cyberspace medium to inform and to generate discourse, to enhance information literacy, and to truly be a "theater of ideas." This site features commentary, data analyses (hey, we've become a "factoid" culture), occasional essays, as well as the requisite links, put together for courses taught by myself and my colleagues." An interesting and informative site with a lot of content.
Sociosite - http://www2.fmg.uva.nl/sociosite/index.html
One of the most comprehensive sites on sociology based at the University of Amsterdam. Covers virtually all areas of sociology with an easy to use interface and very specific subject breakdowns.