Way back before the Internet there were books and back in my day Encyclopedias were the way to go. I was just thinking about a photograph I saw in an book back then that has been stuck in my mind all these years. One about something that looked like a 50's land yacht that seem to float in mid-air with out any wheels. More like a box with head lights...
Behold - the mighty Curtiss-Wright Air Car:
Proof that you can find anything on the Internet. The quality of the information is not always the best, but it surely is out there if you know what to look for...