Hacker News on 20 June 2008

• How not to approach an investor
• Confirmed: Ice on Mars. News broken by Twitter.
• Heavyweight physics prof weighs into climate/energy scrap
• Bootstrappers Beware
• Bubble 2.0
• Robbery caught on JTV
• Inventions they said would never work
• How to make a corporate butt pucker
• Working as a programmer - is it what you thought it would be?
• New Rails documentation site