2. Literature review 2.1 Research on Social Media Marketing The field of Social Media Marketing research has been emerging since 2003. A large number of studies have been made since then. The rise and continued growth of Social Networking Sites have attracted companies who see the potential to transmit their marketing information to the customers and enter into a dialogue with them using the word-of -mouth shifting from traditional one-to-many communication to a one to one approach and offering contact or assistance at any time through SNS such as Facebook, Twitter, etc. (Hanna et al. 2011). Social networks, as a part of Web2.0 technology, provide the technological platform for the individuals to connect and share information online (Boyd and Ellison 2008). As such, for brand owners, it#8217;s an perfect way to enlarge the influence of their brand name. They don#8217;t have to spend a bulk of money to advertise on TV now#8212;although TV advertisements do have its own attraction. And they don#8217;t have to advertising on old-fashioned newspapers, which have little influence. The advantage of this new electronic channel is that it can be used to communicate globally and to enrich marketing toward consumers at the personal level(Mangold and Faulds 2009). Through users#8217; feedback or by observing user#8217;s comments on social media, companies can learn about customers#8217; real needs, and do some adjustments to meet their needs accordingly. Despite the general popularity, viral marketing on Social Networking Sites has not yet reached the high expectations set. Although many Social Media Marketing channels have already been created, how these channels are being used, what their potential is and how consumers interact remains largely unknown. A structured, academic analysis in this field is still outstanding and has yet to be addresses form different perspectives (Richter et al. 2011.) The phrase ”Social Media Marketing” was promoted by a foreign expert at the first time. With the continuing growth and prosperity of Social Media Marketing and the popularity of electronic commerce, Social Media Marketing has thus emerged. The knowing of Social Media Marketing in China were based on the studying of foreign related books. The book by Scott Stratten unmarketing: Stop Marketing, Start Engaging indicates that the prerequisite of Social Media Marketing is to establish good relationships with customers. New York Times bestselling book Likeable Social Media by Dave Kerpen who worked in a social media software company mainly focused on the specific operation and strategy of Social Media Marketing. Erik Deckers Branding yourself: Using Social Media to Invent or Reinvent Yourself which advises how to build online presence using social networks. Those are all foreign documents because Chinese people didn#8217;t know much bout what is social media. Although with a late start on the study of Social Media Marketing, China didn#8217;t be lagged behind the world. On the contrary, China stepped quick into this field, actively digging deep to it. Zhou Chunping (2014) suggested that social media have features of transparency, dialogism and connectivity. Liu Chengfeng (2014) took Chunqiu Airline#8217;s social media strategy in target country Thailand as an example, with the hope of finding out the most effective way for Chunqiu Airline to put their social media strategy into practice. Li Xin (2015) probed features, necessity and advantages of Social Media Marketing compete between companies. Based on this, he studied principally on the major analyzing and collecting methods a company used on Social Media Marketing. 2.2An overview of WeChat marketing and Facebook marketing 2.2.1 The definition of and the introduction of WeChat Marketing WeChat marketing is one of the marketing ways for companies or individuals during networking economy times. There are some WeChat marketing ways: 1.QR code: Response Code Companies or individuals will have a QR code as long as they created a public WeChat account. Usually, companies or individuals persuade their target customers to scan their QR code by promising them some benefits, for example: give them a VIP card or some free gifts and so on. 2.LBS: Location Based Services. There is no much difference between Location Based Services (LBS) and Geographic Information System(GIS). WeChat has a function of positioning. With people#8217;s clicking the ”look around” button, they can easily text message to people nearby. Many companies use this function sending their sales information to users nearby, which is not only convenient for users#8217; shopping, but also promoting their brand name. In addition, they can make profit by doing so. 3.Messenger Bottles From time to time, WeChat users wanna pick up a messenger bottle just out of curiosity. Those messenger bottles are distributed casually to users. Companies may send text, picture, voice message or even a video if they like. 4.Moments (friends circle): On this page, people are allowed to post their information to their followers only. But in one condition, their posts will presented to other users: They spend money to advertise. 5.Public accounts marketing On public account page, company could post their sales information about new products, sales discount or give away activities. 2.2.2 The definition and the introduction of Facebook Marketing Facebook marketing is one of the Social Media Marketing ways, in which people have access to create a business page. There are two ways only to advertise on Facebook: Boost your post (Choose a popular post to boost); Create an advertisement. Differing from WeChat, on Facebook, people can decide their advertising purpose. 1.Promote your page: increase your page followers 2.Boost your posts: Increase your reach number 3.Send people to your website: Direct people to your online shop 4.Increase your post engagement: Make your post have more engagements with potential customers and your followers.