Beer Recipator: Website tools to create recipes online. Includes unit conversions, recipe database, and recipe spreadsheet tool.
BeerSmith: Recipe/brewing software system for the home or professional brewer. Feature list, FAQ, discussion forum and pricing.
Brew Log: Homebrew Software to manage batches and perform calculations.
DJ Computer Services - Home Brew Log: Windows shareware for recording brewing activities. Description, screen shots, and ordering information.
Homebrew Kit Master Software: This software is designed to record details of your home brews, print reports, provide tips on home brewing, and to calculate the alcohol content of your brews.
ProMash: Flexible software for the advanced brewer (Microsoft, limited free demo).
StrangeBrew Homebrew Software: Homebrew recipe formulation and log keeping software.
SUDS Homebrewer Software: Support pages for SUDS homebrewer's recipe database and recipe formulator (Microsoft, shareware).
The Brew Domain: Makers of Brew Simple software, a tool to track recipes and batches that also offers custom label printing.