This is a list of different Webquests you can use for a Social Studies curriculum. This list includes both the high school as well as the middle school levels.
Conner Prairie provides a historical look of professional development for teachers in Indiana dating back to the 1860's. Links to teacher resources and materials, field trip activities, and lesson plans.
Great site that includes workshops as well as an online store for history and social studies teachers. As well as some tips on how to use technology in the classroom to fit social stuides needs.