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Sister Julie Vieira sits at her computer working on her own web blog called "A Nun's Life" in Chicago, Ill. - 

It's probably not on your calendar but tomorrow is Ada Lovelace Day. It's an international day of blogging to celebrate the achievements of Lovelace, and those of all women in science and technology today.

Guests: Jennifer Bohmbach of EightShapes; Meghan Wilker and Nancy Lyons of Geek Girls Guide and Clockwork