Abbreviations in Latin Inscriptions: compilation by Tom Elliott for the American Society of Greek and Latin Epigraphy
https://paregorios.org/resources/abbrev/

Archimedes Palimpsest
Site for general information, explanations, videos: http://www.archimedespalimpsest.org
Site for data (images, metadata, XML transcriptions): https://archimedespalimpsest.net

Attic Inscriptions Online (by S. Lambert): material for teaching Greek epigraphy, translations, photos, squeezes, etc.
https://www.atticinscriptions.com

Bernstein - the Memory of Paper: watermark database and other information and tools about the study of paper

http://www.memoryofpaper.eu/BernsteinPortal/appl_start.disp

Biblioteca Apostolica Vaticana: manuscript images (constantly growing collection)

https://digi.vatlib.it

easiest index to use to locate a particular ms (click on See Simple View to get rid of the useless thumb)nails)

https://digi.vatlib.it/mss/

Biblioteca Medicea Laurenziana: online access to images on manuscripts (mostly of the PLUTEI classification at present)

http://mss.bmlonline.it

Old interface, which includes bibliography link and download function, but only limited magnification of images, at

http://teca.bmlonline.it/TecaRicerca/index.jsp?tipoRice=riceBase

Biblioteca Nazionale Marciana: online access to images of (first installments from summer 2018)

http://www.internetculturale.it/it/41/collezioni/29635/

Bodleian Library: SOLO search (catalog)

http://solo.bodleian.ox.ac.uk/primo_library/libweb/action/search.do?vid=OXVU1

Digital Bodleian Library: Western manuscripts images

https://digital.bodleian.ox.ac.uk/collections/western-medieval-manuscripts/

British Library: Digitised Manuscripts

http://www.bl.uk/manuscripts/Browse.aspx

Bryn Mawr Classical Review

http://bmcr.brynmawr.edu

CeDoPaL: Centre de documentation de papyrologie littéraire (= Mertens-Pack³ database of literary papyri)

http://cipl-cloud09.segi.ulg.ac.be/cedopal/MP3/dbsearch_en.aspx

Center for the Tebtunis Papyri: website and on-line database

http://tebtunis.berkeley.edu/

Checklist of Editions of Greek, Latin, Demotic, and Coptic Papyri, Ostraca, and Tablets

http://papyri.info/docs/checklist

Previous version at https://library.duke.edu/rubenstein/scriptorium/papyrus/texts/clist.html

Classics Department (UCB)

http://classics.berkeley.edu/

Codicologia: site of the IRHT with special reference to codicology, including multilingual glossary of terms

http://codicologia.irht.cnrs.fr

Diccionario Griego-Español: (DGE) the most thorough and attractively organized modern dictionary of ancient Greek, unfortunately only up to ἔξαυος

http://dge.cchs.csic.es/xdge/

List of Digital Projects in classics and archaeology : wiki of digitalclassicist.org

link at https://wiki.digitalclassicist.org/index.php?title=Category:Projects

Digital Latin Library curated online texts and (in progress) new open-access digital editions

https://digitallatin.org

Duke Papyrus Archive

https://library.duke.edu/rubenstein/scriptorium/papyrus/

Duke Data Bank of Documentary Papyri
(replaces PHI disk for papyri); now searched through Papyri.info

https://papyri.info/

e-codices: Virtual Manuscript Library of Switzerland

https://www.e-codices.unifr.ch/en

EDR-Epigraphic Database Roma: for Latin inscriptions

http://www.edr-edr.it/

Epigraphic Database Heidelberg: for Latin inscriptions and bilingual Latin-Greek inscriptions

https://edh.ub.uni-heidelberg.de/home

Gallica: digital collection of the Bibliothèque Nationale, Paris (with many Greek mss available, for viewing and downloading images)

https://gallica.bnf.fr

Gnomon online

https://www.gbd.digital/metaopac/start.do?View=gnomon

GreekKeys 2015 Info and Support

https://classicalstudies.org/publications-and-research/about-greekkeys-2015

previous GreekKeys Info and Support (for older versions, older information)

https://apagreekkeys.org/

*HathiTrust.org: archive of scanned books from major research libraries, with full view and download for most books before 1927

https://www.hathitrust.org

*IG: Inscriptiones Graecae Online (digital version of the volumes revised in recent decades, not all volumes of print IG)

http://telota.bbaw.de/ig/

*IG: Inscriptiones Graecae translations

https://ig.bbaw.de/de/uebersetzungen/texte

*JSTOR: full text journal article archive

https://www.jstor.org/

Latin Place Names (places of publication in old books; clues to manuscript designations) Latin Place Names (Rare Books and Manuscripts Section, American Librfary Association); also Orbis Latinus (based on book by J. G. T. Graesse, 1909)

https://rbms.info/lpn/; http://www.columbia.edu/acis/ets/Graesse/contents.html, also at http://hgis.club/orbis-latinus-online

*Lexikon zur Byzantinischen Gräzität : LBG (Trapp)

http://stephanus.tlg.uci.edu/lbg/

Leuven Database of Ancient Books

https://www.trismegistos.org/ldab/

*Library of Latin Texts (Series A) from Brepols with other *licensed databases

http://clt.brepolis.net/llta/pages/Search.aspx or http://www.brepolis.net/

*Loeb Classical Library

https://www.loebclassics.com

Medium - édition avancée: Répertoire des manuscrits reproduits et recensés: database including both Greek and Latin manuscripts, maintained by Institut de recherche et d’histoire des textes in Paris (compare Pinakes below)

http://medium-avance.irht.cnrs.fr/index/index

Michigan Papyri (APIS)

https://www.lib.umich.edu/locations-and-hours/papyrology-collection

Nemea Center for Classical Archaeology

https://nemeacenter.berkeley.edu/

Palamedes Project (Jerusalem palimpsest, H of Euripides; published volume expected eventually, but long delayed; some day images may be publicly available): http://palamedes.uni-goettingen.de/

Papyri.info database search: replacement for earlier search mechanisms for papyri

https://papyri.info/search

Perseus on-line (version 4.0)

http://www.perseus.tufts.edu/hopper/

Perseus under Philologic

https://perseus.uchicago.edu

Pinakes: textes et manuscrits grecs: various resources for Greek manuscripts, including extensive database, now maintained by the Institut de recherche et d'histoire des textes (Section grecque) in Paris

https://pinakes.irht.cnrs.fr

POxy: Oxyrhynchus Online

http://www.papyrology.ox.ac.uk/POxy/

Pyle: A Gateway to Greek Manuscripts (list of sites with online images; online version of Lake & Lake, Dated Greek Minuscule Manuscripts to the Year 1200; etc.)

http://pyle.it

Searchable Greek Inscriptions: online replacement for and update of PHI CD of Greek inscriptions

https://inscriptions.packhum.org

*SEG online: Supplementum Epigraphicum Graecum

https://scholarlyeditions.brill.com/sego/

Society for Classical Studies
Founded in 1869 as the American Philological Association

https://classicalstudies.org

*software.berkeley.edu Central
campus-licensed software to download for Windows or Mac

https://software.berkeley.edu/

Stanford Encyclopedia of Philosophy

https://plato.stanford.edu/

Stoa.org
a consortium for electronic publication in the humanities (many pages are old or decommissioned)

https://www.stoa.org/

Teuchos -Zentrum für Handschriften- und Textforschung: concentrates on mss of Aristotle and commentators on Aristotle, but many useful links and resources also gathered

http://www.teuchos.uni-hamburg.de

TLG, UC Irvine: general information

http://stephanus.tlg.uci.edu

*TLG login page for searching at upper right of that page.

TOCS-IN (Table of Contents of Journals of Interest to Classicists)

https://to-classics.info/tocs/tocs.html

UC Berkeley home page

https://www.berkeley.edu/

UC Berkeley A-Z List of Web Sites

https://www.berkeley.edu/atoz/

UCB Directory Information
(campus directory online)

https://www.berkeley.edu/directory/

UCB Library home page

https://www.lib.berkeley.edu

UCB Library Guides: Classics Resources

http://www.lib.berkeley.edu

WorldCat: an international union catalogue

http://www.worldcat.org/