Official LDS Church Teacher's HomepageIsrael Revealed, by Daniel Rona
Meridian Magazine, Gospel Doctrine lessons
The Gospel Doctrine Forum, by Bill Beardall
Neumann Insitute, Gospel Doctrine lesson material
Multi-dimensional Commentary on the Book of Mormon by Brant Gardiner
GospelDoctrine.com by Bryan Richards
DeseretBook.com pertinent selections from their GospelLink CD (archived, new content moved to LDSLiving site)
LDS Living Sunday School Lessons
D. Lynn Johnson's Visual Scriptures
Feast Upon the Word group blog
Brad W. Constantine's Gospel Doctrine Lessons
Other web sites of potential interest:
Steve Mortensen's Doctrine and Covenants Revelation Sites
History of Parley P. Pratt, including his entire journal online