Libraries in Poland

NUKAT (catalog of polish scientific libraries) www.nukat.edu.pl
KARO (Polish libraries catalogs) www.karo.umk.pl
EBIB (Libraries in Poland) www.nowyebib.info/baza-bibliotek
FIDKAR (Digital Libraries Federation) www.fbc.pionier.net.pl/owoc
NATIONAL LIBRARY in WARSAW www.bn.org.pl
ELECTRONIC LIBRARY OF THE POLISH ACADEMY OF SCIENCE www.portalwiedzy.pan.pl
POLISH BIBLIOGRAPHY OF LITERATURE  pbl.ibl.poznan.pl
BIBLIOGRAPHY BARA  www.bar.ibl.waw.pl
E - PUBLICATIONS OF SCIENCE IN POLAND www.epnp.pl
VIRTUAL LIBRARY OF SCIENCE WBN www.wbn.edu.pl

Libraries in Italy

NATIONAL LIBRARY in Roma www.bncrm.librari.beniculturali.it
NATIONAL LIBRARY in Florence www.bncf.firenze.sbn.it
ITALIAN DIGITAL LIBRARY www.iccu.sbn.it
INTERNET CULTURALE SITE www.internetculturale.it/opencms/opencms/it

Another libraries :

THE EUROPEAN LIBRARY www.theeuropeanlibrary.org
EUROPEAN DIGITAL LIBRARY OF MANUSCRIPTS www.manuscriptorium.com
VIRTUAL LIBRARY EASTERN EUROPE VIFAOST www.vifaost.de
INTERNET ARCHIVE www.archive.org
CENTRAL AND EASTERN EUROPEAN ONLINE LIBRARY www.ceeol.com

Archives

THE CENTRAL ARCHIVES DIRECTION www.archiwa.gov.pl 
DGA – DIREZIONE GENERALE PER GLI ARCHIVI www.archivi.beniculturali.it
UNESCO ARCHIVES PORTAL www.en.unesco.org

Periodicals

PERIODICAL LIBRARY www.czasopisma.pan.pl
CULTURAL PERIODICALS IN POLAND www.katalog.czasopism.pl/index.php
ticTOCS JOURNAL TABLES OD CONTENS www.journaltocs.ac.uk