Here are various sites that contain information about Heroes of Might and Magic IV and images:

• Celestial Heavens
  
• Portals of Might and Magic
  
• Archangel Castle
  
• Heroic Corner
  
• MapHaven

Also, check out the [1]. The site deals with Heroes III, but the templates and guidelines should be useful.

For general site-wide discussion, use the talk page or the Celestial Heavens Round Table.