Bryan Caplan, a professor of economics at George Mason University and a libertarian presents his Common-Sense Case for Pacifism.
The World Council of Churches has targeted 2001-2010 as the Decade to Overcome Violence (DOV). DOV “is a global movement that strives to strengthen existing efforts and networks for preventing and overcoming violence, as well as inspire the creation of new ones.” Their frequently asked questions provides a good introduction.
Yoko Ono’s Imagine Peace website (“Think PEACE, Act PEACE, Spread PEACE”) has lots of interesting material about peace, art, music, …
Doug Traversa, a retired Air Force officer who spent a year in Afghanistan, is now a student at Vanderbilt Divinity School and a Unitarian Universalist Lay Minister. He has written a Sermon on War and Peacemaking. (You’ll have to scroll down past some beautiful dog photos!)
Robbert Veen is a writer, philosopher, and theologian. He has a blog titled Mennonite Peace Theology, featuring “reflections on issues related to peace theology and ethics from a Mennonite perspective.” He has lots of interesting stuff, including his first post on The Origins of Violence.