On-line here is a list of the Democrats and Republicans who serve on the County Committees for terms running from 2013 through 2015. I am not aware of this information being on-line anywhere else.
It's interesting to take the Committee members in a town that is controlled by the dominant party (i.e. the Democrats in Camden County) and cross reference their names with DataUniverse's listing of government employees. Many of them have positions with the county or one of the school districts or municipalities in Camden County.