We have a number of essays on continuity subjects. In addition to the boxed sections in the Discontinuity Guide, we have the following essays:
The Whoniverse Guide to "canon", which explains which stories we think are in continuity, and which we think are not.
UNIT Dating examines the thorny question of just when the stories in the "UNIT era" were set. This is probably the most contentious continuity issue in Doctor Who fandom, so we examine all the evidence, and try to give all of the competing theories a fair representation.