Shop in the sky, thanks to Delta and Amazon

Travelers with Delta Airlines will now be able to shop in the sky, thanks to a new agreement between the airline and Amazon.

The US airline announced this week that all passengers will be able to access amazon.com and its mobile site amazonwireless.com free of charge during their flight, enabling them to get a little shopping done in between naps and snacking on mini-pretzels.

The site will be available on over 800 of Delta's wifi-enabled aircraft, which operate over the continental US and Alaska.

With connectivity on planes booming, that 'skymall' magazine stuffed in the pocket of the seat in front is rapidly looking a little outdated -- Delta isn't the first name to have embraced high-tech shopping on board its aircraft.

Virgin America was the first name in the US to introduce an in-flight web store back in 2010, offering everything from electronics to golf clubs through the in-flight touch screens and wireless connections.

Gogo, the in-flight wifi provider used by Delta and many other major US airlines such as American Airlines, United Airlines and US Airways, also offers free shopping on the SkyMall.com website for the duration of flights where it is available.

Late last year, Gogo signed a deal with eBay which allowed customers to shop on the auction site for the duration of their flight -- the wifi provider also allows free access to restaurant booking service OpenTable, hotel booking site HotelTonight, shoe retailer Zappos.com and flash sales site Gilt.com.