GitBook now accepts PayPal in addition to credit cards for books purchases and authors can now withdraw their profits through PayPal.
GitHub just makes it easier and much faster to set up a GitBook when creating a repository.
Google today announced that it will be removing Google Authorship from search results.
Authors can now specify the license of their books, by simply placing a standard LICENSE file at the root of their source. Common licenses are automatically parsed and detected.
Authors now have a full fledged dashboard to send custom messages to their subscribers, those messages can be promotions of new books, content updates, etc …
Readers and visitors can now subscribe to a mailing list to get notifications about content updates (and even custom messages from authors).