Boydell and Brewer: Boydell & Brewer home page
Scottish Language Dictionaries: http://www.scotsdictionaries.org.uk/
Dictionary of the Scots Language: http://www.dsl.ac.uk/
National Library of Scotland: http://www.nls.uk/
National Records of Scotland [previously National Archives of Scotland]: http://www.nrscotland.gov.uk
Scottish Archive Network (SCAN): http://www.scan.org.uk/
Association of Scottish Literary Studies (ASLS): https://asls.arts.gla.ac.uk
Scottish History Society: https://scottishhistorysociety.com
Society of Antiquaries of Scotland: http://www.socantscot.org