Community-oriented Information Integration Yannis Katsis (UCSD) Many online communities, be they private, commercial, academic or governmental, have structured data that they would like to integrate and share between their members. However information integration of structured data is currently the privilege of only big communities that have the resources required for such large-scale projects. Indeed the construction of scientific integration portals, such as BIRN (Biomedical Informatics Research Network) and GEON (The Geosciences Network) is still a very large-scale effort, which has considerable financial cost and takes many years to initiate and accomplish. The main reason is that they rely on traditional integration technology, where all integration tasks are carried out by a central integration authority, which quickly becomes the bottleneck. This leaves out all other communities with structured information integration needs whose limited time and financial budget rules out the traditional integration solution. To address this need, we introduce the community-based integration paradigm which enables systems that integrate and query structured data into a global database, at no cost to any central authority. This is achieved by decentralizing the setup and maintenance tasks, pushing them to the independent community members. In this talk we indentify the major setup and maintenance tasks that have to be carried out in an integration system and show how they can be distributed to the individual community members. Being a summary of both our past research and our future plans, this talk contains both full-blown solutions and proposals on future work, which you can help shape through your comments and/or get involved if you are interested.