You can search within a specific online journal – either by 1) Searching for topics across all available issues, or 2) By browsing through years, volumes, issues. Here's how.
Ecumenical Review (World Council of Churches) - (online)
Journal of Ecumenical Studies - (online)
Ecumenism (Canadian Centre for Ecumenism) - (online)
The Ecumenist: A Journal for Promoting Christian Unity (now called Critical Theology)
-also available online
Critical Theology: Engaging Church, Culture, Society (formerly called The Ecumenist)
Exchange - (online)
Twitter
YouTube
Instagram