First, there is the Bissell Centre. While they are not specifially a christian organization, they depend on churches around the city to volunteer and donate. Several years ago I volunteered with my church there for Thanksgiving. Their mission is simple, neighbours helping neighbours improve their quality of life, and combat poverty.
We have the Salvation Army, an international organization, and a Christian church. They work through out the year to fight poverty, and to help those in need. Although they are most obvious at Christmas time with their Kettle Campaign (which Mary and I are working this year), they work hard all year round to do what they can. Their ministry is motivated by love for God and the needs of humanity. They respect the dignity of everyone they work with, and they try to embody God's love, reaching out to others and caring for them.
There is Catholic Social Services. They work hard in the city to help others, no matter what their religion or denomination. They have several projects in Edmonton, including a Safe House for street kids, Karios programs for people with HIV/AIDS, First Steps programs for women who are at risk for giving birth to kids with FASD, and programs to help immigrant families get settled in their new city.
Pax Christi is a Catholic organization that fights for peace all over the world. Many of the members take vows of non violence. I don't know a lot about this organization, they seem to be mainly in the US, I think that Goody would know more about them than I do.
The Anglican church in Canada has the PWRDF, The Primates World Relief and Development Fund.
PWRDF is a response by Canadian Anglicans to the gospel call to bear witness to God's healing love in a broken world. Inspired by the vision of a spirit-filled community of hope, PWRDF walks together with partners in Canada and overseas to share in the creation of a more just and peaceful world. In joy and struggle, the Primate's Fund engages in development work, responds to emergencies, works to protect refugees, and educates and advocates for change.
Anyways, there are a whole lot of stupid and horrible people out there, and that is not limited to the Christian faith, but there are also a whole pile people who want to help, and who work to help (again, this is not restricted to Christianity in the least). With all the ugliness in the world, we just have to look a little harder to see the beauty, but once you do, it will warm your heart.