A list of pages that no other page links to:

1. AdminGroup
2. EditedSystemPages
3. HomepageGroupsTemplate
4. HomepagePrivatePageTemplate
5. HomepageReadPageTemplate
6. HomepageReadWritePageTemplate
7. LocalBadContent
8. Mailing List
9. MissingHomePage
10. MissingPage
11. PermissionDeniedPage
12. ProjectGroupsTemplate
13. ProjectTemplate
14. Submission
15. WikiTipOfTheDay