The online Guide to Open Access Digitized Historical News Sources from Slavic, East European and Eurasian countries offers a country-by-country list of digitized print and audiovisual news sources, including the following titles:
Estonia
Digiteeritud eesti ajalehed
Contains images of newspapers published in Estonia between 1821-1944.
Finland
The Finnish Historical Newspaper Library
Finnish- or Swedish-language newspapers published in Finland between 1771 - 1890. Dates available for each newspaper vary, but few are available more recently than 1910.
Helsingin Sanomat (English translation) (1999-present)
Lithuania
ePaveldas: Periodika
Collection of over 2000 digitized periodicals published between 18th-20th centuries.
Latvia
Digitalizetie laikraksti
Collection of 100 newspapers published from 1886 to 1956, from the Latvian National Library. See also English interface.