S and S Models S and S make a huge range of resin vehicles that work with Elhiem Figures. If you want a vehicle, try S and S!
TOE Hub Joseph Trevithick is one of the authors for the Osprey edition of Ambush Alley's Vietnam-related supplement Ambush Valley. He also sells quality military unit organization documents for wargamers through Wargame Vault, via storefront called TOEHub. Well worth a visit to create historic TOE
World Armies Photo Stream A huge resource of thousands of photos of real soldiers in theater. If you are looking for inspiration or even colours to paint, this site will not disappoint.