When Google turns up a potential source, be sure to examine the content with a critical eye. Think about:

• authority: who has compiled this material and why?
• accuracy: are there typos or broken links?
• audience: are scholarly apparatus (transcriptions, footnotes, references) provided or is the site intended more as a showcase?
• extent: does the site host only a few documents, or dozens?

• Primary Sources on the Web
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  This guide from the American Library Association offers pointers for the researcher.

• Eurodocs: Online Sources for European History: Links to primary source materials about Europe, coordinated by a librarian at Brigham Young University.
• Europeana: Digital archive of over two million images, texts, sounds, and videos from libraries, museums, and archives across Europe.
• University of Southern California Shoah Foundation: Survivors of and witnesses to the Holocaust oral history narratives.