Already, researchers are finding hints that the brain's electrical signals are relayed through a series of central hubs on their way to more-specialized regions, in a system organized like an airline's routes.

WSJ: Probing the Brain's Mysteries

The topics pages serve as central content hubs, aggregating all of the new input from the user base.

FORBES: The New Myspace Has Arrived: "Not a Social Network", but an Entertainment Hub

Several thousand cameras, many provided by private companies, will now cover transport hubs like Grand Central Station, Penn Station and Times Square.

ECONOMIST: New York expands its counterterrorism monitoring system

Traders from rival retail hubs Bow Street Mall and Central Craigavon Ltd launched several legal proceedings opposing the 500, 000 sq ft plans.

BBC: Public inquiry on John Lewis store is adjourned

Apple's iTunes music store is central to Apple's strategy to promote its computers as digital entertainment hubs.

BBC: The Beatles' Apple Corps record label was set up in 1968