The continuing advances in the development of Wireless and Internet technologies generate ever increasing interest in the diffusion, usage, and processing of geo-referenced data. Wireless and Internet devices also offer new ways of accessing and analyzing geo-spatial information. Consequently, new challenges and opportunities have been provided to the GIS research community.

This Symposium is intended to provide an up-to-date review of advances in recent development of Web and Wireless Geographical Information Systems (W2GIS). This symposium will be the 9th in a series of successful events beginning with Kyoto 2001, and alternating locations between East Asia and Europe, with the most recent event held in Shanghai, China. This year the symposium will be held at the National University of Ireland, Maynooth, Ireland.