They can also send the information wirelessly to iPhone apps that graph your activity over time.

WSJ: Keeping Fit, One Step at a Time

It sends data to iPhones (Android's in development) running the Melon app, which translates that info into a focus graph -- generally speaking, the higher the neural activity in your pre-frontal cortex, the higher your level of focus.

ENGADGET

The graph below shows how much the retirement of equity (via buybacks, LBOs and merger activity) exceeds the issuance of equity (through offerings of new shares).

FORBES: The Equity Vanishes

The Facebook activity of users aged between 13 and 17 would have limited visibility in the network's new "social graph" search facility, the firm said.

BBC: Facebook social graph search results limited for teens