Virginia Certification & Licensure http://www.pen.k12.va.us/VDOE/newvdoe/teached.html
College Board AP Central http://apcentral.collegeboard.com/apc/Controller.jpf
George Washington University/Schedule of Programs & Classes http://nearyou.gwu.edu/index1.html
Trinity University/Click on Continuing Education http://www.trinitydc.edu/programs/cont_education/Su08%20Schedule.pdf
University of Phoenix/Specializes in Online classes http://www.uopxonline.com/
Educational Testing Service/Info on Praxis, GRE, and other tests http://www.ets.org
National Endowment of the Humanities Summer Opportunities http://www.neh.gov/projects/si-school.html
PBS Online Professional Development Classes http://teacherline.pbs.org/teacherline/