Apple iBooks - iBooks Store

   Amazon (Kindle) - www.amazon.com

   Barnes & Noble - Barnes & Noble - www.barnesandnoble.com

   Sony Reader Store - www.ebookstore.sony.com

   Kobo - www.store.kobobooks.com

   Copia - www.thecopia.com

   Gardners - www.gardners.com

   Baker & Taylor - www.baker-taylor.com

   eBookPie - www.ebookpie.com

   eSentral - www.e-sentral.com

   Scribd - www.scribd.com

   PagePusher - www.pagepusher.com