This chapter presents media surveys, available in 2006 and still current, which represent the key source of information for Mediaskop. It provides an overview of media surveys in the field of television (Telemetrija, NRB), print media (NRB) and radio (Radiometrija, Mediana RM, NRB) as well as published advertisements gross value (Mediana IBO, Telemetrija - spot monitoring), and the surveys TGI (Target Group Index) and NRB (National Readership Survey). In addition to the above mentioned surveys, Audited Circulations of Print Media (RPN), a project initiated by the Slovenian Advertising Chamber, and the Mediana SM survey are key sources of data on print media for Mediaskop. The following changes and novelties were introduced to media surveys in 2006: Changes to the National Readership Survey – NRB 2006-2008 The NRB entered a new era in 2006 as its participants decided to change several key elements of the survey model, most notably data collection. The combined model, which involved a telephone survey and personal interviews with respondents recruited in the telephone survey, was replaced by personal interviews. The altered fundamentals of the NRB represent a discontinuity with the previous four years, as the scope of the change of model and sample renders the new data incomparable to that of the previous period. The surveys provide merely an assessment of the actual condition, and it is precisely the features of the data gathering model that this assessment is largely dependent upon. As a result, data from the two periods cannot be compared, as it has been rendered incomparable in statistical terms (more information at http://www.nrb.info). Web Page Visits Survey – MOSS 2006-2008 The Web Page Visits Survey (MOSS) is a new media survey carried out in the 2006-2008 period under the aegis of the Slovenian Advertising Chamber. The aim of the survey is to establish permanent research of web page visits based on a uniform methodology. The measurement of web page visits will be carried out twice a year in this period by the polling firm Aragon d.o.o. from Ljubljana. The survey has been commissioned by the Council of Participants at the Slovenian Advertising Chamber. The project has attracted 18 participants – web media publishers with a combined 57 web media. More at: http://www.soz.si/projekti_soz/moss_merjenje_obiskanosti_spletnih_strani.