PressReader (formerly Library Press Display) is a database that provides access to over 3000 publications from more that 55 countries (including South Africa). Access covers the most recent 365 days and the content may be browsed by country, language, or title.
And, for older international news stories
Times Digital Archive 1785-1985
For older African and South African news there is:
World Newspaper Archive: African Newspapers, Series 1, 1800-1922 holding more than 40 nineteenth- and twentieth-century African newspapers. Featuring titles from Ghana, Kenya, Lesotho, Malawi, Mozambique, Namibia, Nigeria, South Africa, Uganda and Zimbabwe, and World Newspaper Archive: African Newspapers, Series 2, 1835 - 1925
SA Media - via Sabinet Reference
S.A. Media is one of the most comprehensive press cutting services offering you access to a database consisting of more than 3 million newspaper reports and periodical articles which have been indexed on computer since 1978.
Rand Daily Mail Archive 1902 – 1985