Health-Hack Dot Com

Jeremy Zawodny of Yahoo (and Linux Magazine) has developed a weight loss technique that is centered around statistics gathering and documenting via a spreadsheet. He documents this at length on his blog, where you can download a copy of his spreadsheet. If you like, you could create your own at Google Spreadsheets.

Congratulations to Jeremy for his success so far, and for creating a great resource!

EDIT: Oops! Sorry about the broken link to Google Spreadsheets!