I am Doug here as well as on all Wikimedia Foundation projects, Wikilivres (a non-WMF multilingual auxiliary site to wikisource, taking advantage of Canada's more liberal copyright laws), Pipedia, and my private mediawiki wiki. I am also Doug on PythonInfo Wiki, a w:MoinMoin wiki.
I am a Steward, Bureaucrat, and Sysop on here. A grapheocrates (bureaucrat) and măgistrātus (administrator) on the latin wikisource, an administrator on the english wikisource and the english wikipedia, and a transwiki importer on the multilingual wikisource. I am also an administrator on wikilivres and I am the system administrator and manager (≈ WMF Steward) of a private/test wiki. I run DougBot on all of the above except the english wikipedia and I run InterwikiBot on all wikisources, though the latter has been largely supplanted by Candalua's better and more general purpose CandalBot.
Both DougBot and InterwikiBot are built on the pywikipediabot framework.