Hacker News on 20 May 2009

• Why it's expensive to be poor
• The TED commandments - rules every speaker needs to know
• Building a house for under $5000
• Your Language Features Are My Libraries
• How to choose colours everyone likes
• Cappuccino 0.7 Released
• Why journalists deserve low pay
• Math and the City
• How to Acquire a Company for Free
• Interview with CEO Peldi Guilizzoni about the growth of Balsamiq