The lost infrastructure of social media. — Medium
medium.com/@anildash/the-lost-infrastructure-of-social-media-d2b95662ccd3#.1n44rab2a
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
As social networks grew in popularity and influence, the old decentralized blogosphere fell apart and those early services consolidated, leaving all the power in the hands of a few private companies.