One hiring practice that discourages minority hiring can be found within the many (but now dwindling) BigLaw firms that only hire candidates from the top 20 law schools.

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At issue is ACORN's practice of hiring local residents to register potential voters.

CNN: Obama camp calls for special prosecutor in fraud investigation

Enron's demise has raised new questions about the common practice of companies hiring consultants from the same firm that supplies its auditors.

FORBES: Magazine Article

"We can't get enough hiring done for our Brazil practice, " Black notes.

FORBES: Careers

Hiring pathologists boosts revenue for a practice and creates a potential incentive to increase the number of tests ordered, said Jean Mitchell, a Georgetown University economist and author of the study.

WSJ: Prostate-Test Fees Challenged

"The efficiency of law practice has just changed dramatically in the past five years, " says Bill Dantzler, a hiring partner and head of the firm's tax practice.

WSJ: Law Firms Keep Squeezing Associates

While the number of companies that charter business aircraft rather than invest in ownership many not be known precisely, hiring a business aircraft is a common practice.

FORBES: In Good Company, Mr. President

But hiring trends are changing, and experts predict within the next 365 days a new practice will take root that will change the job application process on both sides of the interview table forever.

FORBES: Three Critical Steps To Acing The Next-Generation Job Interview