Internet Archive: Prelinger Archives
This is one of my favourite sites, chock full of great stuff. Classic industrial, educational, and commercial films from the twenties through the eighties. "Are You Popular?", one of the most viewed films, contains the immortal line, "Jenny thinks that she has the key to popularity - parking in cars with the boys at night." Haw haw haw! Poor misguided Jenny. So true.

In the same vein, Skip Elsheimer's site (A/V Geeks) showcases some of the "Educational Archives" released from his collection. I have the lunchbox/DVD set, maybe Holly can use it when she starts school. The lunchbox, I mean.