However, in this post I would like to mention two additional resources:
1. International Greek New Testament Project: Bibliography on work on the NT text of Greek authors
The New Testament in the Greek Fathers, took the initiative to compile a bibliography of work on the New Testament text of Greek authors.
The list "keeps track of recent work on establishing the biblical text in patristic writers. It includes the volumes published in the SBL New Testament in the Greek Fathers series, as well as a list of work in progress."
The Biblindex = Index of Biblical Quotations and Allusions in Early Christian Literature is maintained by Laurence Mellerin et al. of the Institut des Sources Chrétiennes. It includes all the 270.000 references in the published Biblia Patristica volumes, and an additional ca. 130.000 references on Athanasius of Alexandria, John Chrysostom, Theodoret of Cyrus, Procopius of Gaza, Jerome and more. Access to data is free, after registration. This is a real treasure trove.I will update Peter's original blogpost with this information.