Between the economy and an emphasis on locavore eating, people are returning to their roots, literally. (I'll take a lame gardening pun whenever I can.) Here's a great list from a horticulturalist on 10 steps to gardening from scratch. Get a soil test and quit making excuses for not starting the compost bin yet.
According to this Yahoo! News report, "the National Gardening Association estimates that a well-maintained vegetable garden yields a $500 average return per year. A study by Burpee Seeds claims that $50 spent on gardening supplies can multiply into $1,250 worth of produce annually."
They are being nicknamed "recession gardens," a throwback to the Victory Gardens of World War I and II.