http://home.att.net/~jbaugher1/p38.html  This site has lots of description data little known facts. How deep do you want to research?...this is the site!

http://p38assn.org/  This site is the P-38 National Association. The P-38 (dubbed the "fork-tailed devil" by the Luftwaffe during WWII)  has been on the verge of extinction since 1947.  There are only 27 of these beautiful creatures still in existence -- and only 7 of them can still fly!
 

http://p38assn.org/glacier-girl.htm  This is a great story about rescuing a P-38 from under 200' of ice, restoring it and actually flying it!