Will share what a friend recently said to me when she thought I may be interested in doing something similar. Can't vouch for the information but knowing the friend I am sure it will prove credible. Hope this helps. And what's more you have the jump if you're an affiliate already, so it may be worth looking into.
"Are you familiar with CreateSpace .... http://createspace.com ... they are owned by Amazon.com so if you create a self-published book of poetry or other writings there, you automatically get an Amazon.com page to sell it (as well as another page on CreateSpace to sell it)... Amazon is where to be! "