This comprehensive list is courtesy of Cornell's InSite:
2008-2009 Presidential Transition Resources
http://directory.presidentialtransition.gov/
Change.gov: the Office of the President-elect
http://change.gov/
PrunesOnline: a Guide to Presidential Appointments
http://www.excellenceintransition.org/
White House Transition Project
http://whitehousetransitionproject.org/
