< taking a class this semester "web visualization / e-participation"
so far we've checked out google earth, arc gis, lots of e-vocabulary like e-democracy... now we're in the process of html and web design. very fast paced since we're only in week 4.
anyway, about the combing the globe... i'd bet that most of those sites don't really do much combing but, have coordinates submitted by the mighty power of the web and its ability to tell us anything with the proper keywords.