JSTOR: scans of journals from multiple fields, with a heavy emphasis on the humanities
EBSCO Databases (Languages): this link searches multiple databases, selected based on their relevance to language- and literature-related research topics. It includes the MLA International Bibliography as well as databases focused on history, humanities, social science, and general literature. It will return much broader and less-focused results than a search in the MLA database alone. To see which databases are included, or to change databases, select "Choose Databases" above the search boxes.
From the Treccani Institute, publishers of the authoritative Enciclopedia Italiana di Scienze, Lettere ed Arti. Provides definitions as well as results for the search term from their multiple reference publications