Hacker News on 13 September 2011

• Joel Spolsky Launches Trello - Organize Anything Together
• Google Flight Search
• Programmers' Day
• I have Crohn's, an incurable digestive disease, and built Crohnology
• How prostitution and alcohol make Uber better
• Show HN: PickHealthInsurance.com
• Tech recruitment: how not to do it
• File Hosting Service Hotfile Sues Warner Bros. For Copyright Fraud and Abuse
• Show HN: Final Touch
• Clojure vs Scala - Anecdote