One interesting layer is the "mapping layer" that is emerging in mobile social networks.

“定位绘图层”是随着移动社交网络的兴起而出现的一个有趣的层面。

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Last week, some mobile users who downloaded an iPhone app from the social-mapping network Loopt found out about a special offer from Virgin America promoting its new service to Mexico.

上周，在社交地图网站Loopt上下载iPhone应用程序的手机用户留意到维珍美国航空的一项优惠产品。这是该航空公司针对飞往墨西哥航线上的新服务举行的促销活动。

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Robert and I contend there are five rapidly converging forces: social media, mobile devices, sensor networks, Big Media and mapping that are forming a new contextual era.

FORBES: How Sensor Networks Add to Context