How Two Companies Hooked Customers On Products They Rarely Use

https://getpocket.com/explore/item/how-two-companies-hooked-customers-on-products-they-rarely-use
Build loyalty via content and community, not product repurchase. 

Advanced Blogging: How to Make Your Blog Serve Your Business

http://www.socialmediaexaminer.com/advanced-blogging-how-to-make-your-blog-serve-your-business-darren-rowse/
Good intro to next-level blogging: calendars, portals, evergreen, welcome mats, etc.

What makes an article popular on Medium? We analyzed 10,000+ data points to find out

https://medium.com/the-mission/after-10-000-data-points-we-figured-out-how-to-write-a-perfect-medium-post-58c41c314f6a#.1k9p0yrux
Analysis of 10k Medium articles to see what makes a popular post. Not sure about causality, though.