The big three subscription databases provide limited resources for foreign law, primarily in transactional areas like corporate law, tax, and contracts.
Currently, Westlaw has the best foreign law coverage of the three databases. Most are practice-oriented.
From Westlaw's home page, select Practical Law to locate the following foreign law resources:
For links to Foreign primary and secondary material:
Lexis provides good international news coverage for all countries and some primary source coverage for a few countries.
Search by legal topic or law review articles:
Bloomberg Law features a variety of international materials, largely focused on transactional law. A list of foreign resources on Bloomberg is available here.