Drents Archief (English: Drenthe Archive) is the official archive for the province of Drenthe in the Netherlands and has Online Drenthe Netherlands Genealogy Records through its digital portal, AlleDrenten as well as a few records and photos at the archive itself.
The Drents Archief along with the Nationaal Archief and other Regional Historical Centers is part of the Consortium which sets policies for archives in Netherlands. Some Drenthe Archive records are also searchable at their digital site AlleDrenten as well as nation-wide sites Archieven, WieWasWie, and OpenArchive.
More information on records available at the search portal AlleDrenten (including birth, marriage, death, inheritance, etc) and search ideas here.
Some records, including Emigration records are available to search directly at the Drenthe Archive.