I'm currently working on scanning issues of AUTOMOTIVE NEWS magazine, a trade paper aimed at automobile dealers (mainly new car dealers) that's been around since the 1920's. The years I am interested run from 1940 to 1957 and so far I've finished 1945, 1941 and currently working on 1942. The publication is covering events at Kaiser-Frazer as well as the comings and goings of various K-F and Willys dealers that submitted items for the publication. Drawback is that the source is material put on microfilm so pictures (at least on the "original") are not good quality. I will work on that once the issues (it came out weekly and usually 30-40 pages an issue, sometimes as many as 72 pages) get put into the computer.
A lot of good historical information can be found in these things. You can also find the link to the archive on CIRCLEKF.COM.