Rootsweb publishes a nice multipage help list

http://www.rootsweb.com/~rwguide/lesson14.htm

 

Cyndi's list always has a great variety of sources

http://www.cyndislist.com/primary.htm

 

Ancestry.com

            http://landing.ancestry.com/military/collections.aspx?html=main&URL=military%2fcollections.aspx%3fhtml%3dmain&o_iid=31731&o_lid=31731

 

Index to many wars

            http://www.militaryindexes.com/

 

Website to find military records—free, but requires registration

            http://benefits.military.com/reg/buddy_finder_reg.do?&strGotoURL=http%3A%2F%2Fcommunity.military.com%2Fbuddy-finder%2Fsearch.do%3Floc%3DL2

 

World War

http://www.militaryindexes.com/worldwartwo/

 

Pennsylvania

            http://www.digitalarchives.state.pa.us/archive.asp

Other

            http://www.familymilitaryrecords.com/