Two useful collections of human rights instruments on the Web are:
Brownlie's Documents on Human Rights (6th ed) by Selected introductions to the theory and practice of international human rights protection are:
Encyclopedia of Human Rights by 
Human Rights: a Very Short Introduction (2nd ed.) by 
International Human Rights: Text and Materials by 
International Human Rights Law and Practice (2nd ed.) by 
Textbook on International Human Rights (7th ed.) by 
International Human Rights Law by 
The Law of International Human Rights Protection by