Cathy Arnst of BusinessWeek.com writes about the 20% rule for women in leadership:

“Seems that the glass ceiling hasn’t budged in years, no matter how many women enter the workforce. An upcoming report from The White House Project, a non-partisan organization set up to promote women in politics, finds that women occupy around 20% of leadership positions in business, journalism, politics and law firms. The rate is much lower in Fortune 500 firms and higher in non-profits (where salaries are typically low). And it’s been that way for years.”

Arnst has some compelling ammo in her article, click here.