Each week at Forbes we scan our database of corporate insiders to see who got richer from the action in the stock market.

FORBES: Who Got Rich This Week: An ETF Innovator, Barnes & Noble's Founder And More

The most recent issue contained articles about using the Internet for education and about the EDGAR database of corporate information maintained by America's Securities and Exchange Commission, all electronically linked to the resources on the network that they describe.

ECONOMIST: From the archive

LinkedIn Recruiter, for example, is a recruiting application that lets corporate recruiting teams mine the entire LinkedIn professional database to find and attract people.

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There are islands of database, but no unified view of corporate data.

FORBES: Larry Ellison

The companies compete in database software, but IBM also sells Oracle software to its corporate and government customers.

WSJ: IBM's Chief Thumps H-P

Their database is composed of Treasury issues, federal agency issues, mortgages, corporate bonds, municipal bonds, money market funds and asset-backed securities.

FORBES: Total Bond Index Funds are Not the Total Bond Market

The Corporate Library has built up a wealth of data on executive pay and contracts, and a database of the myriad ways in which directors are connected, rather than independent.

ECONOMIST: Face value: Corporate Governance Mom | The

By matching users' IP addresses with the public database of addresses registered to different corporations, Griffith's "Wikiscanner" revealed widespread corporate meddling on Wikipedia, as companies attempted to add marketing pitches to their own entries, or hide controversies.

FORBES: The Wiki-Hacker Strikes Again