Sue Shellenbarger @ WSJ.com recently had a very interesting article in her Work & Family column called "How Stay-at-Home Moms Are Filling An Executive Niche."
I think this idea is extremely beneficial for both the consultant and the business. The consultant gets to keep their skills current and in use. The business gets access to "C-level" expertise at an extremely reasonable rate.
Some links mentioned in the article:
Steve Holden's Blog 
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