Handbook for US Forces in Vietnam is a pdf scan of
of the guide given to troops in Vietnam. This is a 1966 edition. Right click and select "save as" to download the Pdf file.
Al Nahas's Warriors Remembered Website. Al Nahas was with Charlie Company 68-70. He served as Platoon leader, XO, CO,
and was also a Platoon Leader with Echo Recon. His book is available on his website.
2nd 502 Historian Website
Archive of 2/502 History by days of the year for all 2/502 history (WWII through Afghanistan - including Vietnam). Lots of good information about various actions. This site
is usually updated every week. http://lzsally.com/archives/Historian/