Parish digital databases

Hello, I was sent a link to Toten searchable website: http://www.slektshistorielaget.no/ This website has been so extremely useful that I am wondering if similar sites exist for other areas of Norway. I have done a websearch but haven't found anything yet. I am interested in searching similar sites for Nord-Trondelag, Vestfold, Østfold, and Hedmark. I have a feeling that the Toten historical site might be unique in this way. The records I'm currently searching don't seem to be available on the Parish Registers yet. Thank you, Mike