Content marketing is a strategy that involves creating and sharing online material like videos, blogs, and social media posts to attract an audience and drive customer action without explicitly promoting a brand. For travel companies, effective content includes compelling visuals, destination guides, and travel blogs. Top travel brands like Tui, TripAdvisor, and Booking.com leverage user generated content and search engine optimization as part of their content strategies. Virgin also utilizes print materials, videos, and social media to share content and build community. The document recommends travel companies focus initially on search engine optimization, creating blogs and destination guides, and building social media presence with engaging images and videos.