Bibliography of articles about service learning from Alabama Possible and the Alabama Poverty Project to "eradicate poverty through strategic partnerships with higher education institutions and faith-based organizations."
VERY deep and rich portal of resources on service learning, including timeline, many bibliographies for various levels of education, case studies and data, and more.
Reports and articles collected by Minnesota Compass, part of the Wilder Research Foundation that collects and analyzes facts for the state to aid in decisions and citizenship.
Service learning research resources on the web collected by the Indiana University - Purdue University at Indianapolis's Center for Service and Learning.