In the American start-up scene, no-one speaks anymore of the classical "marketing mix", now they simply talk about growth hacking. What is it all about? It is actually only the use of the most creative methods possible for acquiring new customers and retaining them through a great product experience. It is also well distanced from the usual marketing disciplines which cost a lot of money. Finding the most effective growth hacks for an e-commerce website is, however, not so easy as the individual disciplines, e-mail marketing, SEA, SEO, social media analytics, conversion optimisation, etc. remain the same for growth hacking. Hendrik Lennarz, Executive Director Product & Technology at Trusted Shops, gives tips as to how growth hacks can bring more customers for online shops.