NoSQL-Database is something quite new. I heard the first time about it a couple months ago and even read an interesting article about the topic which was in truth too complicated for me.
But recently I run into the question who a web shop like Amazon is storing its data. Surprisingly this is no secret and Amazon has published a description about their technology and you can even download an API to connect to the database and you can create your own DynamoDB on the Amazon cloud.
Here is a short summary about the concept in German. I had no time to translate it into English so far. Hope it is correct from a technical point of view!
Kindle direct publishing
I have a kindle since a couple of years and like this beautiful device.
Some weeks ago I found out how to create an ebook for kindle! And the first thing I did was of course to create my own ebook and transfer it to my kindle.
Now I found also out that it is quite easy to pulish such an ebook at amazon.
And my next action was of course to do exactly that: publish my own book! Here it is: my first ebook you can buy at amazon!
I bought also the new kindle. The new one is smaller with the same size of the display, has less wieght and a higher display resolution. The new one is withoug GSM support, but I need to download new books only at home where I have wireless.
The best benefit of the kindle is that you can download a trial of a book where you can read the first chapter. I more than once downloaded such trials and found out that the book is not what I have expected.
It happend more than once that I bought a book which seemed to be very interesting and afterwards I did never read it to the end. Thats over now though I still by books. Not all of the books are available as kindle downloads up to now.
The good thing is, that there are now also German books available, think more than 60.000. And lot of them (mostly old literature: Goethe and so on) are for free.