Here are some links that may be useful:

Companies:

• Sohonet
• Lightworks
• Framestore CFC
• Filmlight

Media delivery links:

• Chief Engineers of Facilities Forum
• MXF information centre
• Pro MPEG Forum
• BBC Standard Media Exchange Format
• Visual Media Delivery Group

Interesting links:

• Google
• Wikipedia
• The String Theory website
• mathpuzzle.com