The SQLSpaces are not only used in various internal projects of the Collide Research Group. We already have a rich user group in academia as well as in enterprise:
"Kodak is using SQLSpaces as a key component of a light-weight Space Based Architecture for product integration in a distributed computing environment. The main benefits include Java and .NET APIs, integration with PostgreSQL, and ease of use."
"SCY is using the SQLSpaces as the central blackboard system for an intelligent agent architecture. Through the usage of SQLSpaces, the project is able to integrate intelligent agents written in Java and Prolog into one system."
"The department of Instructional Technology at the University of Twente (The Netherlands) is using SQLSpaces to implement collaborative educational software applications, e.g. for experimental studies on collaborative drawing. Especially in classroom contexts, SQLSpaces proved to be a robust, light-weight and ad-hoc means to create distributed architectures."
"JamSession [..] has been implemented using SWI-PROLOG extended with the TSPL package, and assumes that worlds and global specifications of predicates are going to stay on a tuple space implemented using SQLSPACES, which has been implemented at the University of Duisburg-Essen (Germany)."
"The "Smart Appliance Lab" or SmartLab is our testbed for an intelligent ambient environment. In this lab, we try to research new ways in Human Computer Interaction. Smart environments should adapt to the user's needs by assisting the users pro-actively with his task. A tuplespace (based on SQLSpaces), serves as central information provider. It contains information on all devices within the lab, their capabilities and properties. It furthermore allows to invoke operations on the device in a programming language and operation system independent manner."
"Jurado, F. et al.: Learning to Program with COALA, a Distributed Computer Assisted Environment" PDF
"In Argunaut the SQLSpaces have been used as the central communication middleware platform to connect the distributed learning environments and moderation tools."
"Weinbrenner, S. et al.: Supporting Cognitive Competence Development in Virtual Classrooms" PDF
"SQLSpaces are used in order to carry out some practices during a course of Coordination and Concurrent Programming by Prof. Bartolomé Rubio Muñoz."