ABSTRACT
Following the success of earlier open-source software development such as Linux, consumer-driven business development such as eBay, and, most recently, user-led knowledge production such as Wikipedia, the past fi ve years have witnessed the emergence of user-created Web content using Web 2.0 technologies as evidenced by the growing popularity of MySpace, Facebook, YouTube, and more broadly the reality TV or game/competition programs with increasing viewer involvement. The wind of this general societal trend of wikifi cation has started blowing in the cartographic
community during the past two years. The wikifi cation of cartography includes the growing effort in open-source and free mapping software, increasing availability of volunteered geographic information (VGI), and the growing deployment of grid and ubiquitous computing in mapping practices. This chapter reviews the recent development of wiki cartography and discusses the implications of this new trend for visualizing the natural environment and future cartographic practices. It is argued that emerging Map 2.0 as a result of wiki cartography must be understood as an integral part of the spatial media.
