But Berger said a great evocative shot can cross a personal boundary.

BBC: Taking photographs of people

Is it about upholding a personal boundary or bucking authority?

CNN: How to say no to your boss

But every so often something happens that crosses the boundary between personal mishap to topic-worth-discussing, and such a thing happened to me last night.

FORBES: How the Brain Handles Catastrophe: A First-Person Account of a Head-On Collision

Helping your employees set personal boundaries in a boundary-less world?

FORBES: At Home in the Office, In the Office at Home

Social networking is spreading out of schools and colleges into companies, big and small, and as that happens the boundary between the personal and the professional is being blurred.

BBC: NEWS | Technology | Meet the digital biographer

However, the boundary between what is personal and what is open is fuzzy.

WSJ: 'Open Data' Brings Potential and Perils for Government