Vincent Dignan presented on growth hacking techniques for attracting users and customers. He began by defining growth hacking as scalable, repeatable, and predictable tactics focused on growth. He then outlined the main channels for user acquisition including social media, social news sites, content marketing, search engine optimization, and email marketing. For each channel, he provided examples of businesses that could benefit and specific tactics to employ. Throughout the presentation, he emphasized testing techniques across multiple channels, focusing resources on the most effective ones, and continually repeating and refining strategies.