In the early 1970s, several forward-looking elected officials, including the sheriff and the district attorney, decided to merge their information onto one central mainframe database.

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Designed to work with SMART Devices that are typically connected to the internet, SMART Glasses are interactive and merge virtual information with the real world.

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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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Google has announced its intention to merge some of its information with DoubleClick's database, but it says it will continue to separate users' names and personal details.

FORBES

She also says that, while Acxiom does store personally identifiable information, it doesn't store or merge anonymous online-tracking data, such as Web-browsing records.

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