Here are some resources for Mastering,,,

• Izotope –
  • Jonathan Wyner –
    • • Mastering Workflow
      • Mastering Toolkit
      • Art and Science of Mastering
      • Many more videos and articles on Mastering from Izotope
• Waves
  • Compression in Mastering article
• Splice.com –
  • Mastering 101 – Multi-part blog on the basics of what mastering is and entails.
• Produce Like a Pro – Warren Huart
  • Howie Weinberg interview
  • Magic Garden Mastering – Brian Lucey
  • Maor Applebaum