The purpose of the paper is to (i) analyze how different users of social media (Twitter) interact and spread cause-related communication and (ii) explore how people search for cause-related marketing campaigns online, allowing a comparison between individualist and collectivist cultures. A social network analysis was used to map the different types of networks created by online users. A second in-depth study on how online users search for cause-related marketing campaigns used a 5-year analysis. Online users in individualist countries are more engaged with a broader community than those in collectivist countries who focus their attention on a narrower set of CRM messages. These findings are useful insights for companies and charities, which should adopt different strategies depending on the culture.