This page describes modern military vehicle camouflage schemes. There are dozens of links and a ton of information. Essential stuff for anyone painting modern military miniatures.
I’ve painted a lot of 15mm and microarmor miniature wargaming vehicles in the last few years. Finding photos to help me in assembly and painting has always been a pain. This site is the cure. It has links to several dozen sites that detail WWII through modern military vehicles.
Gary’s Combat Vehicle Reference Guide is what it says it is.
Jim Stuht has a nice gallery of trains, planes and automobiles (and robots!) that he has constructed from various toys and models. It a fine source of inspiration for your VSF games.