An analysis of networks formed by the links originating from the local authorities’ Websites and then from the successor nodes was performed for 30 municipalities in Poland. This analysis accounted for all links contained on the given local authorities’ Websites, with the links being classified into global and national (like those towards the global www services or the national ministries), regional (pointing, generally, towards the entities from the same province), local (within the municipality in question or the neighbouring municipalities), and internal (i.e. referring to various elements of the same municipality’s Website). Of primary interest in the study were the regional and local links, which potentially form networks of relevance for local development. For these local and regional links originating from the municipality Websites, the respective Websites were, in turn, investigated. For these Websites, again, the local and regional links were analysed. Such networks of depth two were established for each municipality considered. The chapter shows the results of this empirical work and draws conclusions of a broader nature, related to the significance and role of Web-based networks in the economic and social sustainability of the respective communities, especially during a crisis. The hypothesis is that networks in general facilitate survival, sustainability, and development of local communities.