I've been trying to find some good restaurants to go to when I visit Tokyo around New Year's. I live near Nagoya, which has a few good western dining options, but isn't quite so good for Malaysian, Burmese, or Middle Eastern. I generally find Gurunavi and Tabelog overwhelming unless you're searching for one specific area and/or with specific conditions to narrow the results down to a reasonable level, so I've been more interested in blogs and other sites with curated content. Here are a few I found, so please comment with any others you know.
Niche Dekae Blog site featuring posts about restaurants that mainly serve more difficult to find cuisines such as Kurdish, Persian, Ethiopioan, and regional Chinese and Indian.
Search Ethnic Features information about "Ethnic Cuisine" (which in Japan seems to refer exclusively to South and South East Asian food). Includes information about restauants abroad and in Japan.