Art History Journal Indexes
These journals, below offer at least some articles full-text.
Humanties Journal Databases
Electronic Journals by subject - URegensburg's list of online journals limitable by subject. Just limit to "Art History" and scan titles. Those free (or subscribed to by Duke) offer immediate access.
Digital Humanities Bibliography pdf (compiled Duke University)
Current - exhibition reviews, tracing media coverage of art or artists, popular reception to art and tracing works of art. Full-text or pdf
Nexis Uni - (formerly Nexis/Lexis) newspaper articles from the late 1980s onward (depending on the newspaper). Separate search for European dailies is also excellent.
America's Newspapers - search American newspapers by region of the country or individual newspaper. Great for seeing how an art show was reviewed in rural America.
Historic - newspaper accounts can be primary sources for exhibitions, reception documentation, museum collection history, etc. Also good for patronage verification and biographical/obituary accounts. Both pdf scans of the actual column.
Times Digital Archive - the Times (London), 1785-1985
New York Times Digital Index - 1851 until three years ago.