This is just the beginning, and I will add more links over the weekend.

https://www.origins.org.uk/genuki/NFK/

FreeREG - transcribed CofE parish registers. A work in progress, and the link is for the whole country. Select Norfolk from the list.
https://www.freereg.org.uk/

FreeCEN - transcribed censuses from 1841 - 1891. A work in progress, and again the link is for England, Scotland and Wales.
https://www.freecen.org.uk/
Norfolk is complete for 1861, 1871, and 1891.
Coverage for all counties can be found at https://www.freecen.org.uk/statistics.html

In addition to transcriptions, FamilySearch has many images for Norfolk on its site.
https://www.familysearch.org/search/...ceId%3A1986340
Scroll down to England Norfolk.
To access images which may be available, scroll down the page of the records you want to see till you see a blue link 'Browse through (number) image, and click on that.

Norfolk Family History Society https://www.norfolkfhs.org.uk/
They have a members' area which has stuff such as PR transcriptions in it. (Again, the PR transcriptions, etc, are a work in progress.)

Mid Norfolk Family History Society - https://midnorfolkfhs.wordpress.com/

Norfolk Record Office https://www.archives.norfolk.gov.uk/

Norfolk Dialect - https://www.norfolkdialect.com/

Archdeaconries and deaneries https://www.origins.org.uk/genuki/NFK...minareas.shtml