Out of 1,645 billionaires that made the list, 172 of them are women, up from last year's 138.

Rich people have been in the news a lot this week (like every other week). And we've learned some new things about them. For instance, they are mean. Also, the lady-rich crave a personal touch.

• Women between the ages of 50 and 70 are about to become the richest demographic in the United States, claims writer Marti Barletta. We'd see this as cause for celebration except that the inclusion of Oprah Winfrey probably skewed things a bit! [AdAge]
  
• Leaders of the Sikh community in Delhi are calling for an end to…