The mission of SVG Mapping Community Group (SVGMapCG) is to build requirements for SVG based Web Mapping through a discussion of use cases regarding map services. One of the key technologies for SVG Web Mapping is dynamic Tiling & Layering, which realizes zoom and pan display of maps in an efficient manner. The other technologies for the mapping (e.g. Shared Path, Vector Effects and etc.) are also necessary. Although these functionalities will be standardized as part of SVG 2 in SVG WG, the focus of discussion is for general use and the discussion may lack particular aspects for map services. Therefore, our main scope is to investigate whether these generic functions are enough or not to resolve challenges inherent in mapping, and to provide WGs (e.g. SVG and Geolocation) feedback from our observation. Envisioned issues for Web Mapping are a common coordinate system for map contents and a projection. Another issue is a relationship to other GIS communities (OpenLayers, Open Street Map, WMS, and etc.) outside W3C. They have developed map-related standards and frameworks, and we need to clarify our interrelationship and consider collaboration if necessary. This group will not create specifications.