My friend, Shumly (another avid shoe lover), keeps me up-to-date on the new shoe site sagas, namely Piperlime.com and Endless.com. Piperlime is a division of Gap, Inc. Whereas Endless is the love child of Amazon.com. Both are sure to give Zappos a run for the money. But I think there are plenty of shoe addicts (and more getting online everyday) for them all to play nicely.