Interesting set of tweets as recorded by a site called 40Key, about which I don't know a lot. They say on the site: 40k means ebooks. Here you can find:
* Thinking. Culture is going digital. Our essays will tell you stories about this shift. and
* Fiction. A sophisticated selection of stories and a lot of award-winning authors.
Plainly their focus is literature in many forms.
The post's subject is If Book Then: a Recap, which I'm sure makes sense, but don't quite ask me how.
The topic in discussion (I think*) is the advance of e-books and the retreat of real books and bookstores. Some of the comments are just a little scary, especially from someone who goes by the Twitter name of mikeshatzkin.
Mike Shatzkin says on Twitter that he's interested in publishing and digital change.
Make sure you read the Tweet list from the bottom up, otherwise it doesn't make a lot of sense...!
* My lack of understanding here is because Tweets on their own, or even in a bunch like this lot, often don't make enough sense - they lack a bit of context, one might say.