Mondaq (requires free registration) - Aggregates news and commentary written by “professional advisers” on legal and financial topics. Allows researchers to search content by keywords or by filters (examples: region/country, topic and date).
Westlaw, Secondary Sources: filter by publication type: Law Reviews & Journals
Lexis Advance home screen > Explore Content: Secondary Materials > Law Reviews & Journals
Social Science Research Network - Includes forthcoming legal articles working papers and book chapters written by scholars throughout the world.