ProQuest Historical Newspapers: the New York Times provides the full image of articles published in the New York Times from its first issue in 1851. It is searchable by keyword, author, article title, and first paragraph (abstract). You can browse issues by clicking Publications at the top of the screen. It includes illustrations and advertisements. The title changed from the New York Daily Times to the New York Times in 1857.
An excellent starting point for research across a broad stretch of academic subjects with thousands of full-text journals and abstracted and indexed journals. This database is sourced with PDF images for the great majority of journals; many of these PDFs are native (searchable) or scanned-in-color.