1) The document discusses how open APIs can help create communities of readers by connecting different e-reading platforms and sharing data.
2) It notes that while ebook revenue makes up only 1% of publishing currently, new tools that create communities have the potential to significantly increase the number of potential readers and connections between readers.
3) The document argues that open APIs can help publishing become a social network business by containing the rise of closed, proprietary platforms and allowing different services to interconnect