Carsales.com.au is Australia’s leading online portal to access the largest pool of buyers and sellers of motor vehicles. Established through the first mover advantage it was able to build up a sizeable audience through the network effect. Despite efforts to derail the popularity of the Carsales website by larger, better capitalized companies such as News Corporation and Fairfax, Carsales continues to be dominant site of choice by consumers. Its site records three times the combined page impressions of all its major competitors.