Another chronological MGM blog

This one is by Sanek
http://mgmclassiccartoons.blogspot.com/

A Chronological MGM Blog

There is a blog of screenshots being posted at http://cartoonsmgm.blogspot.com/ (albeit starting in 1939), with text in what I assume is Portugese as the blogger, Luige125, is in Brazil. Good luck.

WB Production Numbers

Thad's doing a compilation of WB production numbers, which may be a useful resource:
http://www.whataboutthad.com/wb-production-number/