I love the whimsical approach they take to some of this. Especially the 2nd City Zoning app <
http://secondcityzoning.org/> that uses SimCity2000 as a base for visualizing the city's zoning. If you type in an address it even reticulates the splines for you :)
-Liam Currie
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D309 Macintosh-Corry Hall,
Department of Geography,
Queen’s University, Kingston ON
(613)329-2240