MathSciNet is a successively updated and easily searchable database of reviews, abstracts and bibliographic information about scientific publications in the field of mathematics. The database focuses on following areas of science: mathematics, statistics, engineering, mathematical physics, biomathematics, operations research, computer science. Annually, 100,000 new records indexed by Mathematics Subject Classification are added to MathSciNet. The database is a continuation of the printed publication Mathematical Reviews. Information on MathSciNet is obtained from around 550 journals. It contains over 3 million records, out of which more than 1.7 million have a direct link to original articles. The database also provides data on citations of journals, authors, articles and reviews.