Taken as a whole, it has grown to become an almost indispensable resource for planning a trip to Scotland, with dispatches from Edinburgh to the Inner Hebrides.

FORBES: A Savage Walk Through Scotland's Peaty Laphroaig Distillery

As a leader, the fact that you would allow an employee to become indispensable to begin with means that at a minimum you have a lack of transparency and continuity in your organization, and more probably that you lack depth of talent and are weak in process and knowledge management.

FORBES: Seth Godin's Linchpin Theory: Sound Advice or Career Suicide?

For journalists trying to disentangle the claims and counter-claims of politicians against hourly and daily deadlines, it has become an indispensable source of anti-spin.

ECONOMIST: Policy watchdog

In 1965 Lewis Coser, an eminent sociologist, argued that the modern university had become an indispensable part of a civilised society, a place that provides salaried intellectuals with a milieu conducive to the exchange of ideas and, uniquely, a licence to disagree with those who pay them.

ECONOMIST: A cardinal in cyberspace