I thought it was a pretty good summary. Contents:

• Copyright: The mechanism behind most software licenses
• Simplified decision diagram for choosing a software license
  • License decision diagram
• Correctly applying a license
• Major open-source license categories
  • Copyleft vs. permissive
  • Free vs. non-free licenses
  • Patent usage
• Warnings
  • License proliferation
  • License incompatibilities
  • Conflict-of-interests
  • Contributor license agreement (CLA)
• Recommendations for software, hardware and other projects
  • Software projects
  • Hardware projects
  • Other projects (documentation, music, etc.)
  • FAQ