Licensing
Article explaining how licensing and royalties work.
Copyright FAQs - answers to common questions and misconceptions about copyright.
The copyright notices fact sheet explains how to mark your work to ensure the best effect and protection.
Copyleft is a term that describes a copyright licencing scheme where the author surrenders some of his rights...
Is your use fair dealing? or covered under a licensing scheme? has copyright expired? or do you need permission from the copyright holder.