What are primary sources? Primary sources may include letters, manuscripts, diaries, journals, newspapers, speeches, interviews, government documents produced by government agencies, photographs, audio recordings, moving pictures, video recordings, research data and objects or artifacts such as works of art or ancient roads, buildings, tools, and weapons. ALA. "Using Primary Sources on the Web."
Examples:
What are secondary sources?
Secondary sources interpret and analyse primary sources that may have pictures, quotes or graphics of primary sources in them.
Examples:
http://www.princeton.edu/~refdesk/primary2.html