Hacker News on 20 September 2009

• From Nothing To Something. How To Get There.
• Ask HN: Do you create music? Let's hear it!
• Greetings
• Billionaire SAS co-founder keeps on coding
• A $5 App That Justifies Your iPhone Purchase: Instapaper
• Google Wave: You need to pay attention to this
• Project ‘Gaydar’: An MIT experiment raises new questions about online privacy
• OSS (pre-CIA) Simple Sabotage Field Manual
• Advice to a Beginning Graduate Student - Manuel Blum (CMU)
• Egyptian govt. wiped out pigs, cities now overwhelmed with trash