Try these online databases for your dehumanization project:
ABC-CLIO Issues CSD
SIRS Knowledge SourceG - Leading Issues
CQ Researcher DCPL
Opposing Viewpoints DCPL
Student Resource Center DCPL

To find Free Web Resources:
Nettrekker CSD
NoodleTools: Choose the Best Search for your Information Need.

Books:

DHS Library Catalog [at school] [at home]
Dekalb Library Catalog

News Sources:
New York Times
NPR: National Public Radio
BBC News
CNN World News

More useful resources can be found on the Find Articles page.