Sinclair in Cambridge
- Very brief history of Sinclair in Cambridge, and of Cambridge University's Sinclair Building.
- http://www.iankitching.me.uk/history/cam/sinclair.html

Planet Sinclair - Sir Clive Sinclair
- Biography and chronology of Sir Clive's life (to 1986) plus various interviews.
- http://www.nvg.org/sinclair/sinclair/sinclair.htm

Uncle Sinclair
- Brief page on Sir Clive focusing on his calculators, though he also invented the digital watch, and was father of the British home computer revolution.
- http://www.dotpoint.com/xnumber/sinclair_notes.htm