Institute of National Remembrance - Gathering and administering the documentation created between the world war II and the post-war period by Polish security agency.
http://ipn.gov.pl/en
Mapa Polski - Mapa Polski is online map of Poland. On this website you will get directions to any place in Poland.
http://www.mapasamochodowa.com.pl
Polish National Library - The official web site of the national library of Poland.
http://bn.org.pl/en/
