This could perhaps be described as a UK-based equivalent of Themelios and is available free online.
John Piper highlighted it yesterday.
Recent contributors include Craig Blomberg, Kevin DeYoung, Paul Helm, Derek Thomas and Robert Letham.
The editorial team is quite impressive:
Iain D Campbell (Free Church of Scotland, Point, and Westminster Seminary), Bob Fyall (Cornhill Training Course (Scotland)), David McKay (Reformed Presbyterian Church of Ireland), Dan Strange (Oak Hill College, London), Ted Turnau (Anglo-American University, Prague & Wales Evangelical School of Theology), Keith Walker, (Director, SIM-UK), Garry Williams (The John Owen Centre, London Theological Seminary) and Peter Williams(Tyndale House, Cambridge)
Would be nice to have it in Logos!