Harry Brundage writes about programming, with a series called Neat Algorithms covering Paxos and flocking, plus posts on JavaScript and web development.
HN commenters recommend his Paxos article as a good introduction, noting that it includes a JavaScript visualization of the algorithm.
http://harry.me/blog/2014/12/27/neat-algorithms-paxos/ is quite a good article for an introduction to PAXOS.
Last time on HN: https://news.ycombinator.com/item?id=8806835
Here you can find an example in JavaScript that visualizes the Paxos algorithm: http://harry.me/blog/2014/12/27/neat-algorithms-paxos/