I wanted to open a question asking about visualization techniques in GIS beyond conventional methods enabled by Arc/QGIS toolkit. I.e. my recent question/answer Creating regularly spaced points inside polygon based on attribute value using QGIS? provides an interesting approach to mapping data, that I never encountered before (a sort of merger between mapping and info-graphics).
I'm afraid though that the question (What are some useful unconventional mapping techniques?; and list what is known and tried by most people in the question: choropleth maps, pie charts etc.) will be closed immediately as too broad. However, when browsing the stack exchange it seems that these sorts of wiki-like questions are among the most popular and useful ones to the broader community i.e. Listing available online WMS services (Weather, Land Data, Place Names)? , Learning Python programming with generic GIS goals in mind?
I know that I can search the web and find different techniques, but most info there is about conventional methods that everybody in the GIS world knows already, and unconventional ones are usually blog posts with just one method tried by a user.
Can I open a question like that or should I narrow it down to a specific dataset that I need to get mapped?
There is none - I just want to see what other people came up with throughout the years.