Rules / Regulations
Convert just about any measure to anything else
Grapestompers - Winemaking Conversions
Wine Adds is a good site for all the general calculations.
Fermsoft is a good site with downloadable applications.
The Wine Maker's Answer Book by Alison Crowe
The Art of Making Wine by Stanley F. Anderson with Raymond Hull
From Vines to Wines by Jeff Cox
The Joy of Home Winemaking by Terry Garey
Got Mead, A website with a mead making short course by The Robert Mondavi Institute, UC Davis.
For the advanced winemaker.
Principles and Practices of Winemaking, Roger b. Boulton, Vernon L. Singleton, Linda F. Bisson and Ralph E. Kunkee.