The Scottish Politics Research Unit has been covering politics and elections in Scotland since 1996. This site contains detailed results for all Scottish Westminster elections since 1983, Scottish parliamentary elections since 1999 and European elections since 1979, along with information on by-elections, local government elections, opinion polls, referendum results, and election maps.
Currently available only via the UK Web Archive: http://www.webarchive.org.uk/wayback/archive/20050517120000/http://www.a...
From 1983 to most recent elections / referenda
Data freely available on internet