The Internet offers different ways for companies to make themselves visible and successful with their marketing activities. Due to its fast growing popularity, many companies have discovered the opportunities that arise from social media and have started marketing campaigns on the social web. However, most companies lack an appropriate social media strategy and a way to measure their social media success, which makes their social media activities a waste of time, or even harm their reputation. Due to the growing popularity of social media and as a response to the companies' social media...