One-way marketing (interruption) is often more effective than two-way marketing (engagement) for large brands communicating with significant numbers of people. While two-way marketing aims to directly involve consumers, people generally do not care much about brands and are less likely to actively engage or participate. Examples show that memorable one-way ads like the Cadbury Gorilla commercial can be more effective at reaching large audiences with positive brand messaging than two-way social media campaigns, which typically see very low rates of actual consumer engagement. The most robust case studies continue to show traditional one-way marketing performing well compared to two-way approaches.