Factiva: Dow Jones collection of business and general news from 14,000 sources. A wide variety of UK and foreign newspapers and news sources including the Financial Times and Wall Street Journal
Individual titles can be searched on Newspapers Libguide.
LexisLibrary: Covers a wide selection of UK newspapers, including regional titles, with backfiles (coverage varies between publications). Select "News" from the navigation bar at the top of the screen
More information on finding newspaper articles is available here.