Worked in number theory 1975-1989. Wikipedian and go author. Sometime employee of Wikimedia UK, now a contractor for them and volunteer project leader for their virtual learning environment in Moodle.
http://www.linkedin.com/profile/edit?id=89408270
Leaving MO in peace now. I hope to get my Wikisoba project running in 2015:
https://wikimedia.org.uk/wiki/Wikisoba_project
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