"This paper analyses the behaviour of suppliers and customers in the electronic real estate platform ""immobilien.net"" in Austria. Suppliers (real estate agents) post their offers on this Internet platform. When doing this they decide not only about the published asking price, but also about which characteristics they underline in order to highlight the property. The potential customers, on the other hand, scan the available offers and retrieve additional information about a specific offer, fetch the contact information of the broker or directly write an email. All these activities reveal key aspects about the behaviour of suppliers and customers and about the way the respective market functions. In our paper we will investigate this information in order to extract some of the central aspects about the actors. This analysis will give a unique insight into the strategies professional real estate brokers pursue on electronic platforms as well as into the search strategies of their customers."