Instead of the latest headlines, they saw messages reading the sites were unavailable, and the papers were unavailable and exploring options to return to the EU market.” It was all due to the launch of the General Data Protection Regulation (GDPR), an EU initiative aimed at giving citizens more control over their personal information.

At least two media conglomerates, Tronc and Lee Enterprises, were affected by the rule change, which requires companies to get a user’s express consent to gather personal information or face large fines, up to 4% of its global turnover or $20 euros ($23.4 million), whichever is higher.

Tronc runs newspapers in ten markets. Lee Enterprises publishes 46 daily newspapers across 21 states.

GDPR forces companies to be more vigilant about obtaining consent when they collect user data and gives EU citizens the right to see what information was gathered about them and have it deleted. In cases of data breaches, companies are required to inform users and let authorities know within 72 hours of discovery.

Curious if your local paper was forced to go dark in Europe? Here’s a list of Tronc and Lee news sites, presumed to be inaccessible at present:

• Chicago Tribune
• Los Angeles Times
• New York Daily News
• The Baltimore Sun
• Orlando Sentinel
• Sun-Sentinel (South Florida)
• Newport News
• Virginia’s Daily Press
• The Morning Call
• Hartford Courant
• The San Diego Union-Tribune
• St. Louis Post-Dispatch
• Arizona Daily Star
• Wisconsin State Journal
• Daily Citizen
• Portage Daily Register
• Baraboo News Republic
• The Times
• The Pantagraph
• Herald & Review
• Lincoln Journal Star
• Columbus Telegram
• Fremont Tribune
• Beatrice Daily Sun
• Quad-City Times
• La Crosse Tribune
• Winona Daily News
• The Chippewa Herald
• Billings Gazette
• The Courier
• Sioux City Journal
• The Bismarck Tribune
• The Post-Star
• Missoulian
• Ravalli Republic
• The Southern Illinoisan
• Rapid City Journal
• Independent Record
• The Montana Standard
• The Journal Times
• Albany Democrat-Herald
• Corvallis Gazette-Times
• Casper Star-Tribune
• The Times-News
• Elko Daily Free Press
• Globe Gazette
• The Daily News
• Santa Maria Times
• Napa Valley Register
• Arizona Daily Sun
• The Citizen
• The Times and Democrat
• The Sentinel (Carlisle, PA)
• The World
• The Sentinel (Hanford, CA)
• The Ledger Independent
• Daily Journal

Also offline, presumably temporarily, in Europe is Instapaper, the Pinterest owned app that lets readers save stories for later reading.