There are also many options available to self publishers/writers. I have made some good money over the years off Smashwords and Draft2Digital. Smashwords has their won store, and both it and D2D act as aggregates to get your books on Kobo, Applestore, B&N (one can also self publish direct on B&N as well) etc. I was compiling my numbers today for lifetime earnings for an upcoming how to book I plan on writing, and my lifetime earnings for about 3 years of writing that ended years ago has netted me close to 40k in royalties. I still get a couple hundred a month now, all these years later.