Hacker News on 13 June 2011

• Why Groupon Is Poised For Collapse
• It's official: developers get better with age. And scarcer.
• Welcome Sam, Garry, Emmett, and Justin
• Facebook users drop in the US and Canada
• What the hell is happening to rails?
• Why Google Earth Can't Show You Israel
• Why I won't be using Groupon again.. A consumer perspective.
• Why developers should be force-fed state machines
• Mindblowing Experiment demonstrating Laminar Flow
• Node.js is Backwards