RePEc (Research papers in Economics) is a freely accessible networked database service for specialist economics information. It includes the publications listed on EconStor. However it also includes bibliographical references, full text links and various rankings based on citations and downloads. Researchers can also create their own author profile here and thereby manage their publication lists. For many researchers, RePEc is the most well-known full text service in the field of economics. Approximately half of the 3.5 million publications linked there (above all, journal articles and working papers) are freely available. Registered researchers also receive a monthly email detailing the popularity of their works, their ranking and newly found quotes.