http://www.zappos.com/Womens-boots
What a keen selection (yes, they also have a *lot* of actual Keen brand shoes too). You can find things from platform boots (heels), to high heel dress boots, high-heel casual boots, Knee-High, Low-heel, and the list goes on and on.

Zappos is nothing short of amazing. Running a business that focuses on customer service and availability seems like something only a crazy person would do, but they are doing it and incredibly well.

Like, Free shipping, BOTH WAYS. Now, a few years ago that would sound like crazy talk, but now IT STILL sounds crazy, but they seem to do it with efficiency and elan.