Jared Newman, PC World
“One simple way to get some extra mileage out of an old tablet is to turn it into a dedicated PC monitor. Even with just 7-inch tablet, you can use the extra screen to keep an eye on instant messages, email, or social networks. If you’re working with photos, video or music, the second screen could even serve as a dedicated space for toolbars. It’s also an easy second screen to pack up and take with you.
I suggest Air Display.”