Hacker News on 5 July 2007

• How Costco Became the Anti-Wal-Mart
• Interviewing with Y Combinator startups?
• How Yahoo can beat Google
• Justin.tv does baseball
• Do you want money or freedom?
• Certification? Bring it on!
• The Pmarca Guide to Big Companies, Part 2: Retaining great people
• SBCL and Common Lisp are gaining users
• Naver.com Beats Google in Korea using a Social Approach
• The Importance of Picking The Right Host And How To Do It