Here is a constantly growing and certainly not definitive list of churches that are on Facebook (mostly from the UK). Thank you to all my friends on Twitter and Facebook who helped me to get this list going! If you have one to add please add a comment on this page. Thanks.
In no particular order:
St John’s Stanmore (group)
All Saints, Penarth (group)
St Michael’s Discoed (profile, not page)
Sheffield Cathedral (profile, not page)
Latimer Minster (profile, not page)
Spellow Lane Church (profile, not page)