Many of the ones that were free are available as PDF; this guy has them archived (film, etc. datasheets too) and categorized as some are harder to find on the Kodak website.

http://125px.com/techdocs/kodak/

(be sure to check elsewhere there for Fuji, Agfa, etc.)

In particular on that list I like "Photography Under Arctic Conditions".

As for the ones that aren't PDF, I like them all too! Esp. the old color related ones ca. 1945-65.

Back when Kodak was fat with profit and big fat corporations still felt it proper to engage in public service without nickel and diming you at every possible opportunity.