I too was a BoB shopper and am sad it's gone.
Now I shop from
BAM (Books-a-Million). Through the military Aafes site you become a member. They have all the selections I want at decent prices. The epub have not had any problems that I have noticed.
I just found another site, apparently newer and not as many books, but it's through the Overdrive system and when you purchase through the Overdrive Library (Purchase this book now), that library receives some of the profits.
www.librarybin.com (The only drawback I saw was there is not searching by Author, just Book title)
So:
Bam and
LibraryBin for me.
AJ