Some links about second screen:

ConnectedTV Association

- http://www.ctvma.org/

iOS GUI guidelines:
- http://developer.apple.com/library/ios/navigation/
- http://www.lukew.com/ff/entry.asp?996

Disney Second Screen:
- http://disneysecondscreen.go.com

SONY:

http://uk.playstation.com/psvita/

Wii U:
- http://e3.nintendo.com/hw/#/introduction
- http://twitter.com/WiiUOfficial

Facts & Figures:

- http://www.marketingcharts.com/television/internet-grabs-kids-teens-attention... (Some figures about how digital natives are using second screen/go about multi-tasking etc) (Work in Progress)