Amazon.com currently has O, The Oprah Magazine 1 Year Subscription for $5. This is part of Amazon's Holiday Magazine Sale and is offered as the Magazine Steal of the Week. The price should be valid until Saturday, December, 19, 2009.
I've never seen O Magazine offered for this low of a price, so I believe this is a great deal.
Amazon magazine subscriptions always ship for free, and they can help you qualify for Free Super Saver Shipping on your order.
See More $5 Magazine Subscriptions from Amazon with some offers valid through December, 31.