Calculators:

• Simple mash and sparge water:  http://www.brew365.com/mash_sparge_water_calculator.php
• Simple Calculators:  http://www.brew365.com/mash_sparge_water_calculator.php
• Of all kinds: http://www.brewersfriend.com/stats/
• Advanced Recipe Calculator: http://powersbrewery.com/beer-recipe-calculator/

Brew day Sheets:

• http://www.brewersfriend.com/brewdaysheets/

Shopping:

• www.Northernbrewer.com
• www.Williamsbrewing.com
• www.Midwestsupplies.com
• www.Austinhomebrew.com

Software:

• Brew Target
• Beersmith
• ProMash

Brewing Courses and Schools:

• http://www.onlinecoursesreview.org/craft-brewing/