Friendly AI on Wikipedia.

Works by the Singularity Institute/Eliezer Yudkowsky:

Why We Need Friendly AI
SIAI Guidelines on Friendly AI
Artificial Intelligence and Global Risk
Creating Friendly AI
Cognitive Biases Potentially Affecting Judgment of Global Risks
Features of Friendly AI
Coherent Extrapolated Volition

From SL4:

What is the difference between friendliness and Friendliness?
A Galilean Dialogue on Friendliness (in progress)
Friendliness not an add-on
Thinking About Friendly AI
Simplified Friendly AI

Multimedia:

Yudkowsky at the Singularity Summit (audio)
Hard AI Future Salon with Eliezer Yudkowsky (video)
How do we more greatly ensure responsible AGI? (video)

Critiques of the above:

Friendly AI is bunk by Shane Legg
Alternatives to (Yudkowskian) Friendly AI proposed on the SL4 list
Critique of the SIAI Guidelines on Friendly AI by Bill Hibbard
SIAI’s Guidelines for ‘Building’ Friendly AI by Peter Voss

By Oxford philosopher Dr. Nick Bostrom:

Ethical Issues in Advanced Artificial Intelligence
When Machines Outsmart Humans

By Dr. Ben Goertzel, Novamente LLC:

Encouraging a Positive Transcension
Thoughts on AI Morality
The All Seeing A(I)
Ben Goertzel on AI Safety (SL4 wiki)