Part of the point of the Manhattan Security Initiative is to link up existing private cameras to a central feed, in addition to installing new cameras.

FORBES: Privacy advocates should be reassured by the Times Square Terror surveillance video

Each day, 1, 000 meals are prepared at Bhaktivedanta and taken to central London to feed the homeless.

BBC: 'George Harrison' Bhaktivedanta Manor Hindu temple at 40

With little warning in 2006, Facebook unveiled "News Feed, " a central page that gathers all the posts from each user's friends in a stream.

WSJ: Facebook's New R&D Machine