Ever wonder how much money business speakers such as Jim Collins, Tom Peters, and Michael Porter pull down each time they take the stage? Workforce Management has compiled a handy chart. Here are the highlights:

• Clayton Christensen: $40,000
• Jim Collins: $45,000
• Stephen Covey: $65,000
• Gary Hamel: $50,000
• Tom Peters: $65,000
• Michael Porter: $70,000

The chartlet accompanies a feature story about management gurus -- and whether they make good on the promises they make the companies they work with.