4e Campaign Settings
From D&D Wiki
This is a list of campaigns that use the 4e D&D rules, rated in order of completeness.
See Campaign Seeds for short-form, systemless, campaign ideas.
These are very comprehensive in most aspects.
These are complete in many aspects, but information is sparse in a few categories.
These have some, but often sparse, information in most categories.
These have some sparse information, but large amounts of material are missing.
These are very minimal pages, and most likely are stubs.
These have yet to be rated for comprehensiveness/completion. Please help and rate these.
Translations are from an existing body of material into a game setting.