Communities making their own currencies

GREAT BARRINGTON, Mass. -- Diana Felber brought her groceries to the checkout and counted out her cash -- purple, blue and green bills that are good at only businesses in western Massachusetts.

Known as "BerkShares," the colorful currency is printed by a nonprofit group to encourage people to spend close to home in the state's Berkshire region. Customers who use the money also get a built-in 10 percent discount, since they can get 100 BerkShares for just $90 at local banks.