Anyone know where I can find women's narrow shoes?

Does anyone know of a website where I can find cute, trendy narrow shoes? I've looked at several sites but the only ones I can find are either very old looking or are birkenstocks (ewww!) All the regular size shoes I've tried in a 5 are too wide and gap at the sides.I think I need a size 5AA (narrow). Too small to find in stores. Any suggestions would be appreciated.