The document summarizes research into perceptions of three social networks in Romania: Twitter, Facebook, and HI5. Twitter users see themselves as early adopters focused on networking and sharing information. Facebook users view themselves as sharing interests within their private social circle. HI5 users have mixed perceptions, ranging from self-expression to nostalgia. Twitter users see Facebook users as focused on entertainment and HI5 users as shallow. Facebook users view HI5 users as seeking attention and ego-boosting. The research aims to understand user motivations to help brands choose appropriate social networks.