Inventory: Characteristics of Effective Professional Development Programs
http://www.ncrel.org/tech/tpd/res/arbuck1.htm
Professional Development in Education and the Private Sector: Following the Leaders
http://www.ncrel.org/policy/pubs/html/lead/index.html
Professional Development Index
http://www.ncrel.org/sdrs/areas/pd0cont.htm
Professional Development Toolkit:
http://www.ncrel.org/pd/toolkit/lftb/index.htm
Professional Development: Learning From the Best Toolkit Highlights
http://www.ncrel.org/pd/f-guide.htm