I notice that
Christian Book lets you select
DRM Free under
Refine Within eBooks in the left column. That's nice. It allows me to browse through only uncorrupted books first before widening my search.
But I haven't noticed this on any other sites. (Except for
Right Brane and
O'Reilly, where that's all there is.)
Do any other bookstore sites have a non-DRM browse capability?