Fitness isn't just about body fat and muscle mass. For many of us, being fit inside counts, too, which means trying to make the best possible choices from day to day -- best for ourselves, our families, and our planet. And it can get tiring sometimes, trying to determine whether you're better off purchasing sustainable Product X from Company A or slightly-used organic Product Y from Company B, but sustainable shopping just got a bit easier with WorldofGood.com.

WorldOfGood.com is an Ebay community that strives to be "your source for everything People Positive and Eco Positive." They want to provide a place where people can "create positive change through commerce, as part of a global community."

More and more people are interested in the effects their purchases make -- knowing you're buying items that meet your philosophical needs can bring you great peace of mind. If you want to see just how big an impact simple spending habits make on the world at large, check out the Smart Cart quiz. You'll be amazed (and slightly horrified, if you're anything like me!).