Country code: +371
Directory listings for businesses and people in Latvian, Russian and English. Business phone numbers are visible but if you want to find a person you only get their name and location in the results and then instructions to call a telephone number (for privacy reasons).
Yellow Pages for Latvia in Latvian, Russian and English. Search via keyword, category or via the map option.
Good clearly laid out Yellow Pages directory for Latvia in English, Russian and Latvian. Includes maps and reviews.
Business directory for Latvia. In English and Russian.