If your’re researching on the web, check out these site and apps put together by the Online Education Database. It’s a great list when you know you can’t use Wikipedia. As good as it is, no university will trust it. Add to this list Footnote.com and we’re in business.
Artcyclopedia - If you’re looking for information on artists or art movements, Artcyclopedia is a great place to begin. The site provides links to museums worldwide where works by over 8,200 artists can be viewed. While most of the artists listed are painters and sculptors, you can also find photographers, decorative artists, and architects. Any art or art history research can benefit from this site, at least as a starting point.