What's Worse -- Glass Ceilings or Glass Cellars?

Article here. Excerpt:

'Benevolent sexism. Motherhood penalty. Dominant negotiation paradigm. These were some of the ideas discussed at a conference on gender and work hosted by Harvard Business School last week. According to the academic presenters, all three contribute to ongoing discrimination against women in the corporate world. And they have the research to prove it.
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Recently, however, an HBR reader introduced me to three very different terms related to gender and work: Apex fallacy. Glass cellar. Feminine imperative. All of these, he argued, are contributing to a "war on men" in the workplace. This was an issue I'd asked about in my essay called "The Silent Sex" in the March issue of HBR. ...
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In my years as journalist, I've heard stories about both traditional discrimination and the reverse; about women who have been passed over for promotions and those whose contribution to organizational diversity has helped them leapfrog more qualified men. I know the statistics on leadership: women are greatly underrepresented. But what's the view like today from the middle manager's office, the R&D lab, the IT service desk, the call center, the assembly line, the retail store floor, the college classroom? As the mother of both a boy and a girl, whose future do I have to worry about most?'