AmazonLocal is Amazon's answer to Groupon, and despite being fairly new, they've already featured some pretty good deals in the last few months. This one seems to be targeted to the San Francisco Bay Area, although it appears that anyone can purchase it. All you have to do is spend $10, and you will receive $25 towards a round-trip domestic flight on Virgin America.
Travel must be booked and completed by June 13, 2012, so there isn't a whole lot of time to use the voucher. However, the paid value does not expire, so you are still entitled to spend the $10 toward a round-trip domestic flight even after June 13, 2012. Blackout dates do apply on May 25 and May 28, 2012. The deal is not valid on one-way trips, multi-city itineraries, or previously booked travel. It is only valid for itineraries booked for a single traveler in non-refundable Main Cabin fare classes S, L, M, U, E, H, B, or V. Limit two vouchers per customer, and one voucher per booking. Click here for full terms and conditions.
Definitely take advantage of this if you plan on traveling to domestic destinations serviced by Virgin America within the next month. However, I probably wouldn't purchase this deal just for the hell of it due to the rather extensive restrictions. There are six more days left to purchase, but quantities are limited, so I wouldn't be surprised if they run out sooner.