For a more detailed search see articles A-Z and index.
Problemoriented and with a focus current debates ● short and long articles ● hyperlinked with online sources and literature ● with a diversity of topics and authors ● in keeping with academic and open science standards ● independent of commercial interests.

The online lexicon for Systematic Theology (SysLex), provides an introduction to concepts in dogmatic theology, ethics, and the philosophy of religion. The Lexicon adheres to academic standards and follows central lines of research, but aims to engage both of these with a view toward current problems. With its open access availability, SysLex makes this knowledge open to all.

The Encyclopedia for Social Ethics has been providing information on fundamental questions of social life since 1954. Following nine print editions, it is now available in digital form, offering well-founded insights from the perspective of Protestant social ethics in an objective manner and with an open, dialogical approach.

Since 2022, the online encyclopedia of denominational studies has provided reliable information on the churches and ecclesial communities represented in Germany, ecumenical and denominational structures, and key topics in ecumenism.
From 2027 onwards, this ecumenical knowledge portal will be available as “KonLex”, alongside the two other online encyclopedias on this platform.
