Texts and dictionaries

Ars edendi. List of Greek editions and translations in progress
http://www.arsedendi.org/?page_id=546

Biographisch-bibliographisches Kirchenlexicon
http://www.bbkl.de/

Coptica. Textes coptes et documents en libre acces
http://www.coptica.ch/501/index.html

Corpus Scriptorum Historiae Byzantinae
http://archive.org/search.php?query=%28Corpus%20Scriptorum%20
Historiae%20Byzantinae%29%20AND%20-description%3A%28by%20tpb%29

Digital Nestle — Aland
http://nestlealand.uni-muenster.de/

Documenta Catholica Omnia
http://www.documentacatholicaomnia.eu/25_20_25-_Rerum_Conspectus_Pro_Auctoribus_Ordinatus.html

Lexikon zur byzantinischen Gräzität
http://www.tlg.uci.edu/lbg/#eid=1&context=lsj

H. G. Liddell, R. Scott, A Greek-English Lexicon
http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.04.0057%3Aentry%3Dfe%2Frw

Patristica.net (PGPL, Mansi etc.)
http://patristica.net/

Patrologia Latina, Graeca et Orientalis
http://plgo.org/

Prosopography of the Byzantine World
http://blog.pbw.cch.kcl.ac.uk/

Prosopographie der mittelbyzantinischen Zeit
http://www.bbaw.de/forschung/pmbz/index.html

Thesaurus Linguae Grecae
http://www.tlg.uci.edu/

Thesaurus Linguae Graecae: Online Canon of Greek Authors and Works
http://stephanus.tlg.uci.edu/canon/fontsel

Myriobiblos
http://www.myriobiblos.gr/texts/index_gen_en.html

Ancient Medical Library: Digital Texts
http://medicaltraditions.org/collection/texts

Palaeography and codicology

Andrist P., Règles de catalogage
http://www.codices.ch/catalogi/leges_2007.pdf

Archive of Papers and Watermarks in Greek Manuscripts
http://abacus.bates.edu/wmarchive/

Ph. Bobichon, Le lexicon: Mise en page et mise en texte des manuscrits hébreux, grecs, latins, romans et arabes
http://aedilis.irht.cnrs.fr/lexicon/

Drigas A.S. — Tagoulis A. — Kyragianni P. et alii, An eLearning platform for self-paced learning for Greek Paleography, “Wseas Transactions on Advances in Engineering Education”, 3.2 (2005), pp. 251
http://imm.demokritos.gr/publications/Self_Paced.pdf

Tselikas A., Mathémata Ellenikès Palaiographías — Etos próto
http://www.scribd.com/collections/2672234/%CE%9C%CE%B1%CE%B8%CE%AE%
CE%BC%CE%B1%CF%84%CE%B1%CE%95%CE%BB%CE%BB%CE%B7%CE%BD%
CE%B9%CE%BA%CE%AE%CF%82%CE%A0%CE%B1%CE%BB%CE%B1%CE%B9%
CE%BF%CE%B3%CF%81%CE%B1%CF%86%CE%AF%CE%B1%CF%82%CE%88%
CF%84%CE%BF%CF%82-%CE%A0%CF%81%CF%8E%CF%84%CE%BF

Codicology and Palaeography in the Digital Age 2, ed. by F. Fischer, Ch. Fritze, G. Vogeler, Norderstedt 2011
http://www.i-d-e.de/kpdz2-online (free download online)

Eλληνική Παλαιογραφική Eταιρεία
http://elpe.web.auth.gr/history

Comparative Oriental Manuscripts Studies (COMSt): An Introduction
http://www1.uni-hamburg.de/COMST/handbookonline.html

Databases

Base de données expérimentale Mertens-Pack 3 en ligne
http://promethee.philo.ulg.ac.be/cedopal/index.htm

Base de données interactive: manuscrits grecs de Grégoire de Nazianze
http://pot-pourri.fltr.ucl.ac.be/manuscrits/GRECS/DEFAULT.HTM

Calendar of Saints in Byzantine Manuscripts
http://ica.princeton.edu/drewer/intro.php

Kurzgefasste Liste der griechischen Handschriften des Neuen Testaments
http://ntvmr.uni-muenster.de/liste

Greek Medical Manuscripts: A Database of the Manuscripts in Diels’ Catalogue
(1905-1908)
http://medicaltraditions.org/collection/databases/greek

Hagiography Database (Dumbarton Oaks)
http://www.doaks.org/research/byzantine/resources/hagiography-database

Leuven Database of Ancient Books (LDAB)
http://www.trismegistos.org/ldab/

Papyrology and Palaeography (PapPal)
http://www.pappal.info/

Pinakes. Textes et manuscrits grecs
http://pinakes.irht.cnrs.fr/

Rinascimento Virtuale
http://palin.iccu.sbn.it/

Studite. A database about Byzantine bookbinding
http://www.studite.org/index.php

Repertories

Repertorium der Handschriften des byzantinischen Rechts
Teil I, Die Handschriften des weltlichen Rechts (Nr. 1-327), hrsg. von L. Burgmann,
M.T. Fögen, A. Schminck, D. Simon, Frankfurt am Main 1995 (Forschungen zur byzantinischen Rechtsgeschichte, 20)
http://data.rg.mpg.de/byzanz/byzRg20repertorium.pdf
Teil II, Die Handschriften des kirchlichen Rechts I (Nr. 328-427), hrsg. von A. Schminck und D. Getov, Frankfurt am Main 2010 (Forschungen zur byzantinischen Rechtsgeschichte, 28)
http://data.rg.mpg.de/byzanz/byzRg28repertorium.pdf

Archivio dei possessori della Biblioteca Nazionale Marciana
http://marciana.venezia.sbn.it/la-biblioteca/cataloghi/archivio-possessori 

Gateways

Anemi. Digital Library of Modern Greek Studies

Byzantium. Byzantine Studies on the Internet
http://www.fordham.edu/halsall/byzantium/index.html

De re palaeographica
http://derepalaeographica.blogspot.it/

Internet Medieval Sourcebook. Selected sources, Byzantium
http://www.fordham.edu/halsall/sbook1c.html

Manuscript Road Trip (in North American Collections)
http://manuscriptroadtrip.wordpress.com/

Perseus Digital Library
http://www.perseus.tufts.edu/hopper/

Online journals

Parekbolai. An Electronic Journal for Byzantine Literature
http://ejournals.lib.auth.gr/parekbolai/index

Byzantine News Blog
http://byzantinenews.blogspot.com/

Ελληνική Πατρολογία
http://greekdownloads.wordpress.com/

Typography

Greek Word study tool (Unicode Greek Keyword)
http://www.perseus.tufts.edu/hopper/morph?redirect=true&entry=poiou/=ntai&display=Greek