National:      

Archival Funds of Lithuanian Museums
http://www.muziejai.lt/archyvai/archyvai_muziejuose.htm

Collections of Parchments of Rare Book and Manuscript Department of Martynas Mažvydas National Library of Lithuania
http://pergamentai.mch.mii.lt/

Database of Lithuanian Manors
http://www.heritage.lt/dvarai/ppavadinimas.php

Digital Library of the History of Panevėžys
http://www.paneveziomuziejus.lt/lt/skaitmeninebiblioteka

Information System of Church Archives (BARIS)
http://www.kf.vu.lt/baris/

Information System of Lithuanistic Heritage “Aruodai”
http://www.aruodai.lt/

Integral Collections Information System of Lithuanian Art Museum (ICIS)
http://www.rinkinys.ldm.lt/iris/

Lithuanian documentaries on the Internet (e-cinema)
http://www.e-kinas.lt/

Lithuanian Expatriate Art Foundation
http://www.iseivijosdaile.lt/

Lithuanian Integral Museum Information System
http://www.limis.lt/

Jonas Basanavičius Folklore Library
http://www.knygadvaris.lt/

Parchments’ Digital Images Archive
http://cb.mab.lt/pergamentai/

Registry of Cultural Values
http://kvr.kpd.lt/heritage/

Seimas of the Republic of Lithuania. Legal Acts (1918-1940)
http://www3.lrs.lt/pls/inter_archyvas/dokpaieska_arch.forma_l

The Most Valuable Collections of Lithuanian Museums
http://www.muziejai.lt/MuzKolekcijos/DBaze/Paieska.htm

Virtual Electronic System of Cultural Heritage
http://www.epaveldas.lt/vbspi/

Foreign:    

American Museum of Natural History Collections Databse
http://research.amnh.org/anthropology/database/collections

British Museum Collections Database
http://www.britishmuseum.org/research/search_the_collection_database.aspx

Central Registry of Museum-type Collections of the Czech Republic
http://ces.mkcr.cz/

CER.es – Spanish Museum Collections Digital Network
http://ceres.mcu.es/pages/SimpleSearch?index=true

Cornucopia, Online Collections Database of UK’s Museums, Galleries, Archives and Libraries
http://www.cornucopia.org.uk/

EKM E-Kunstimuuseum – Estonian Digital Art Museum
http://digikogu.ekm.ee/eng

Europeana – Europe’s Digital Library
http://www.europeana.eu/

Imperial War Museum Collections Online Database
http://www.iwmcollections.org.uk/qryMain.php

Information System of Estonian Museums
https://www.muis.ee/muis/app?page=AvalikOtsing&service=page

JOCONDE, Catalogue of the Collections of French Museums
http://www.culture.gouv.fr/documentation/joconde/fr/pres.htm

Joint Catalogue of the National Holdings of Latvian Museums
http://www.nmkk.lv/

Metropolitan Museum of Art Online Collection Database
http://www.metmuseum.org/works_of_art/collection_database/crdhome.aspx

MICHAEL – Multilingual Inventory of Cultural Heritage in Europe
http://www.michael-culture.org/en/about/european-service

Museum of the History of Science Collections Database
http://emu.mhs.ox.ac.uk/index.php

Portuguese Museums Collections Database
www.matriznet.imc-ip.pt

Spanish Museum Collections Database
http://www.mcu.es/museos/CE/Colecciones/CatalogoMuseos.html

V&A Collections – Victoria and Albert Museum Collections Database
http://collections.vam.ac.uk/

Virtual Museum of Canada
http://www.museevirtuel-virtualmuseum.ca/index-eng.jsp