The campaign is organized by the Bhopal Medical Appeal, London Mining Network and UK Tar Sands Network, among other groups.

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So does DoubleClick, a data-mining ad "network" that monitors behavior on 1, 400 Web sites and has more than 80 million user profiles in its database.

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The experience of viewing The Social Network is akin to data-mining.

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That network also shares information about who is "mining" the coins.

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There are mashups that let you see which products are selling best on eBay , that help manage the sale of foreclosed property through a network of real estate agents, or merge sales information with data mining from analysis firm Business Objects .

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Several mining presidents, executives and industry specialists come from across the world to attend, network and sometimes give presentations to the tens of thousands of attendees.

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Ms Gillard plans a broadband network for rural areas, a 30% tax on iron ore and coal mining companies' profits, and a tax on major polluters to help cut carbon emissions by 5% by 2020.

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Union Pacific has its network well spread in the PRB region, which has witnessed an uptick in coal mining activity lately.

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