Academic citation graphs are invaluable WHERE the topic is academic, but this post (like most citations I would venture to say) is an example of citing Wikipedia that would generally not be considered academic or in the results of the articles and case law of scholar.google.com.

There is a huge body of knowledge that lies (dare I say) in a Google search. You just need to know how to evaluate the search results with a reasonable criteria of notability, relevance, accuracy, etc.