RulesOfThumb.org

Web Site Attempts to Collect Every Rule of Thumb from Read/WriteWeb by Josh Catone

... web site called Rules of Thumb that is attempting to catalogue all those nifty bits of knowledge that fall somewhere between adage and old wives tale.

Anyone can contribute a new rule, but other users will have the ability to vote up or down whether new rules make it into the main database. Once in the DB, users can rate and review rules, which Parker tells us allows the site to employ "a Darwinian weeding mechanism which will let the content improve in value over time."