This report of the DELTA (Developing European Learning through Technological Advance) Exploratory Action identifies and synthesizes the most promising findings of the 30 projects involved in the Action. The purpose of the report is to disseminate among the educational technology community the technology and services so far achieved, and to provide a mechanism to allow further development of DELTA results in the follow-up of this research action. It is noted that the original workplan of the DELTA project was aimed at improving the knowledge on all facets of the development of advanced educational and learning technologies in Europe. Chapters are as follows: (1) "The Flexible and Distance Learning Market," which covers the market structure, user's needs, producers' needs, conditions for the uptake of learning technologies, and awareness and information activities; (2) "Applications and Systems Developments," which covers learning material development, learning systems, simulation techniques, hyper/multi media, training information systems, and remote course delivery systems; and (3) "Methodologies for Delivery of Training," which covers models and methodologies, evaluation and assessment, and description and assessment of experiences outside of DELTA. Seven annexes contain: listings of DELTA projects and contact points; references to DELTA Exploratory Action deliverables and results; relevant documents issued by the DELTA office; background references; pointers to RACE projects; pointers to ESPRIT projects; and a list of abbreviations. (DB)