For Expendable Launch Vehicle Manifests check out

http://www-pao.ksc.nasa.gov/kscpao/schedule/mixfleet.htm (KSC mixed fleet)
http://newproducts.jpl.nasa.gov/calendar/ (JPL Space Calender)
http://www.flatoday.com/space/next/97sked.htm (Florida Today)
http://mocc.vandenberg.af.mil/launchsched.asp (Vandenberg 30th Space Wing)
http://www.patrick.af.mil/45Rans/schedule/page2a.htm (FL 45th Space Wing)
http://ourworld.compuserve.com/homepages/rawhide_home_page/vandenbe.htm (VAFB)
http://ast.faa.gov/linfo_vsite/launch_info.cfm (US Dept. of Transport)
http://yyy.tksc.nasda.go.jp/Home/Press/launch_future_e.html (NASDA, Japan)
http://www.arianespace.com/us/status/povi.htm (Ariane)