Below is a selection of useful sites that tackle the ideas of Human Rights, you should use these for additional reading, case studies and building a depth of knowledge on the topic.
This site is the one stop for all UN ideas on rights, documents and covenants.
UN campaign site calling for more rights.
Amnesty site, an NGO concerned with Human Rights
A decent article appraising the role of Human Rights in the field of International Relations.
Links to different EU legislation on rights and arguments for rights
Another Human Rights advocacy NGO