SocioSite
Click on "Subject Areas" to see a list of sociological topics.
http://www.pscw.uva.nl/sociosite

Sociology  - from Social Science Information Gateway (SOSIG)
http://www.intute.ac.uk/socialsciences/sociology/

Intute:  Social Sciences - Sociology
EXCELLENT advanced search feature!
http://www.intute.ac.uk/socialsciences/sociology/