The article is dedicated to give an assessment of possibility of the applicability of web-based geographic information systems (GIS) within the micro geo-marketing researches. Description of micro geo-marketing data domain, its key features and objectives are given. Functional model of the data collection process is presented. Authors formulate requirements for micro geo-marketing web-GIS and suggests using geodata meta model to provide all necessary functionality within data store tier of GIS architecture. The paper also contains original attributive store component data model.