Posting some links and books I found useful while researching a Scottish ancestor, an 18th century goldsmith:
Incorporation of Goldsmiths Website
The Hallmarking Archive has a searchable database of goldsmiths of Edinburgh from the twelfth century and Glasgow goldsmiths from the surviving records of the Glasgow Assay Office (1819-1964) and brief biographies of many provincial Scottish gold and silversmiths.
http://www.incorporationofgoldsmiths.org/content/hallmarkingarchive-home/The Edinburgh Goldsmiths I: Training, Marks, Output and Demographics. 2007 By Janice Dietert, Rodney Dietert
The Edinburgh Goldsmiths II by RR Dietert - 2010 – excellent bios of goldsmiths with a wealth of genealogical info.
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=13&cad=rja&uact=8&ved=0CCYQFjACOAo&url=http%3A%2F%2Fecommons.cornell.edu%2Fbitstream%2F1813%2F19637%2F2%2FEGII_Part1.pdf&ei=WSIzVcbfJNKvogTfuYDoBQ&usg=AFQjCNGOHEhTMhTPgq-NVTjzRCZNlxhNEQ&sig2=qMqL9bbSQ8oCwF2rth5GSg&bvm=bv.91071109,d.b2wScotland's Families and the Edinburgh Goldsmiths By Rodney Dietert, Janice Dietert By Ian Finlay, Henry Fothringham
Scottish Goldsmiths 1600-1800. David Dobson, Willow Bend Books, 1998
Silver Made in Scotland by George Dalgleish amd Henry Steuart Forthingham, NMSE - Publishing, Edinburgh 2008.
Edinburgh Goldsmith's Minutes 1525 -1700, Fotheringham, Henry Steuart, editor, Munro, Jean, transcriber, Edinburgh, 2006, (hardback) ISSN 0143-9448.