I am embarking on a project to cook every recipe in the "The Bread Baker's Apprentice: Mastering the Art of Extraordinary Bread" cookbook. I would like to maintain a cooking journal, something similar to a lab book, to document my observations as I attempt each recipe.  The objective is to prefect my bread making method. I prefer electronic methods of maintaining the journal for efficient referencing.  
I've found Evernote (www.evernote.com) to be the best, simply because it is everywhere. It supports basic features like tagging, and can adapt to most every use case you can throw at it.  And it's free! 