Wikipedia 101 Workshop session, led by Mary Mark Ockerbloom, as part of THATCampPhilly 2013, held at the <a href="https://en.wikipedia.org/wiki/Science_History_Institute" class="extiw" title="w:Science History Institute">Chemical Heritage Foundation</a> on September 27, 2013. Event photo of Wikipedia workshop; permission has been explicitly given by photographer <a href="//commons.wikimedia.org/w/index.php?title=Xx:User:TJentzsch&amp;action=edit&amp;redlink=1" class="new" title="Xx:User:TJentzsch (page does not exist)">TJentzsch</a> to release on Wikipedia Commons under Creative Commons license.
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