Many newspapers allow you to register and receive free access to at least a portion of that day's published articles.
Current articles from many news sources are also available online.
ABYZ News Links "Gateway to Newspapers, News Media, and News Sources" from around the world, with its own search tool.
ICON: International Coalition on Newspapers. An information clearinghouse and searchable database covering over 25,000 newspapers around the world.
OnlineNewspapers.com. More than 5,000 titles listed by country.
The Paperboy Links to more than 3600 newspapers from 126 countries.