Education Portal
http://www.osc.edu/webed/ list of web based learning and training projects
http://www.imsproject.org standards for learning portals
http://www.npac.syr.edu/users/gcf/webwisdomrefs/ some NPAC related summary documents
http://www.npac.syr.edu/users/gcf/petcandt/ some old but good references
http://www.webct.com/webct/ well known server based system