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Surveying people via the Internet presents both opportunities and challenges. The opportunities include quick access to respondents all over the world enabling fast realization of surveys at low costs. The challenges include a lack of control over both the sampling process and research implementation, as well as low response rates. This article describes a method of obtaining an appropriate sample of people for survey research utilising the power of the Internet, while simultaneously allowing the researcher to minimise risk thanks to enhanced control over the sampling process and the implementation of the survey. The proposed method could be used mainly in economic and social surveys; it allows researchers to reach selected groups of respondents and to conduct surveys on a global scale. The proposed sampling method uses LinkedIn's network structure to quickly reach a dispersed population Creating a list of units belonging to the study population resembles the snowball method, though the units are selected for the sample by the researcher and not indicated by the respondents.

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Container terminals require continuous benchmarking of competitiveness factors. This paper discusses factors of competitiveness with a main focus on feeder and mixed terminals (in which both feeder and transshipment services are provided). Method statement includes an economic literature review with respect to competitiveness factors and a container port expert survey process to achieve a list of most important factors among global container port operators. Experts were selected from different countries and private container terminals. A questionnaire was developed and sent online to them. Questions required both a ranking of factors as well as assigning monetary values to critical variables. Responses were analyzed using a pre-established strategy. Overall, experts ranked first the role of market related competitiveness factors related to service quality, price level and adaptability to the changing market environment. Intermodal links and general hinterland connections factors were more often mentioned than factors relating to nautical accessibility or other factors. Both assignment of monetary values as well as ranking have produced mutually coherent results. The paper does not claim to be definitive; it aims to provide an update of competitive factors hierarchy and highlights issues for further port development.