Apolyton CS - Civ II: Test of Time: News coverage, file downloads, reviews and a large screenshot collection.
Apolyton CS Forums - Civ2-Test of Time: Discussion forum for ToT related issues.
Kestrel's Civilization II Test of Time Page: Large variety of scenarios and modification packs with descriptions.
Scenario League - Tips: Small section of scenario making guidelines.
Tecumseh's Village: The creator's repository for the Red October ToT scenario.
The Cradle of Civilization: Guidelines, scenarios, in-game graphics files and utilities.