+1 Historical beer styles
I would like to see more innovative ideas on pre and post boil hopping. homemade hop backs, dryhopping in the keg, and different ways to dry hop using water filters, etc.
I can never get enough info on yeast - culturing, making starters, DIY projects for yeast ranching/handling, new strain characteristics, keeping a "house culture" healthy (of "bugs" or of brewers yeast)