Easiest section to use:http://www.digitalarkivet.no/cgi-win/WebFront.exe?slag=vis&a...
New Digitalarkivet home page (I'm not crazy about the 1910 census search engine; it's not as easy as the other one on the first link):http://www.arkivverket.no/eng
Far better to use Norway's Digitalarkivet database; it's free. Click on English to get menus and things like column headers for transcribed census data to come up. The images for the records are online through the early 20th century and you can download the page with your ancestor's info for your records.
I do know there's one whole section of familysearch.org records for Buskerud that were transcribed wrong because the transcriber put the father's patronym in the surname spot when they should have put the child's patronymic name, so no one gets a hit off of that one unless the father had a double name. I've no doubt others have been transcribed wrong, too, and none contain the name of the residence farm where the people were living when events happened. Last I heard, the transcriptions (such as they are) for familysearch were only done through the mid-19th century. Digitalarkivet's records go through the early 20th century.
Some of the data in some of the microfilm images has been transcribed and is online in Digitalarkivet records, too. The search engine is the easiest on the web for the transcribed records, and because of the multiple alternate spellings I use the 'starts with' menu most of the time.