Published in a current study of the market research institute Ipsos, commissioned by the Verbandes Deutscher Auskunfts- und Verzeichnismedien (vdav) [en=Association of German Information Directories], in its eighth repeat iteration in November 2008, which surveyed 2,000 people over 14 years of age. In a press release, vdav published the results of the study.

Along with the use of printed media, directory enquiries is also popular – 37 percent of the people surveyed called up when searching for address information. Online directories placed third in popularity – somewhat more than a quarter of respondents, according to vdav, consult the internet when searching for companies, service providers and people.