Great content is one of the best hacks today, be it for attracting new users, getting listings on search engines or creating a buzz on social networks. You can either produce content or get some external help to help you with it.
Udemy has seen amazing growth with this hack, which in inbuilt in the business model. It has domain experts like authors, professors etc adding content to the site. This ensures user acquisition and retention and also helps develop the reputation of the website on different media.