Social media marketing - developing a distinct online presence by attracting high numbers of internet followers through social media channels such as Facebook, Twitter, YouTube and Instagram.Search engine optimisation (SEO) - developing strategies to increase the number of visitors to a Website by achieving high-ranking placements in search results.Pay-per-click (PPC) campaigns - sponsored online advertising paid for by the business to appear alongside non-paid search results.Mobile marketing - includes app-based, in-game, location-based and SMS marketing.Affiliate marketing - where a business allows other businesses (affiliates) to sell products on their website. The affiliate is paid commission for each customer brought to the website by their own marketing strategies.