The document discusses the evolution of geographers and geographic information systems (GIS) from older "OLD geographers" to newer "NEO geographers". It notes key differences in tools, data formats, and approaches between older cartographers and surveyors versus newer hobbyists and users of tools like Google Maps APIs and open data. It provides timelines showing this evolution from 2004 to 2007 and discusses the rise of user-generated content and crowdsourced mapping through tools like OpenStreetMap.