As Hillary Clinton stands down from her presidential campaign and urges her supporters to back Barack Obama, it's worth reflecting on what she's achieved, even though it wasn't the goal that she was aiming for. In her final speech on Saturday, she said that it will now be unremarkable to think that a woman can be president of the United States and that although she didn't break the glass ceiling, it now has 18 million cracks. Will it now be easier for other women to follow in her footsteps, or will she be regarded more like Margaret Thatcher - a woman who was somehow too masculine to make space for other women?

There's an interesting article in the Guardian about why there aren't more women in positions of leadership in the arts. Among the reasons offered is a lack of self-belief