Recently, we observed many networked market are served almost by a single platform, and can called that situation be winner-take-all. We could observed that the top website occupy huge market, and still be the top for long time. Conversely, the other website only shares the tiny market. This paper chooses the biggest Taiwan portal Yahoo!Kimo to be the research case. In addition, the case object is its e-commerce department, which is the Yahoo! only e-commerce department worldwide. Through this case, we could find out the truth of winner-take-all. In this research, we use in-depth interview and combine with secondary data. According to past researches and the situation of Yahoo!Kimo, we address the research question as follow: (1) How does Yahoo!Kimo develop their e-store platforms to maintain their e-commerce leading position in Taiwan. (2) Is there a winner-take-all phenomenon on Yahoo!Kimo? After generalize the data, we found that although Yahoo! first time enters Taiwan not successful. Their strategy is merge different kinds website, such as the leading portal Kimo, the most visiting blog Wretch, and Monday.Tech. They got their human resource and technology sooner, then become the top one portal in Taiwan provides variety services for users. For foreign website and companies enter a new market will be a good role model. Moreover, we prove Yahoo!Kimo is role model of winner-take-all.

Abstract Because of the globalization tendency and high information technology applied, the enterprises, pursuing their expanding, surviving, or reach the synergy, tend to adopt M&A strategy with the other firms, integrate all the resources and acquire the leading high technology or management systems in the rapid movements of the business environment. In recent years, the number and the scale of M&A events are boosting and increasing. More and more international enterprises conduct M&A strategy and change their market sharing and standing by doing so. No doubt, M&A has become the important main strategy of worldwide firms. In fact, mergers and acquisitions same as marriage ceremony, it's not so difficult to deal with transaction. But the key point is how to put two or more different firms together and work well. Unfortunately, during the traditional procedure of due diligence, it's only emphasized forms, price, values, finance, and lawful parts, but undervalued the importance of organizational culture, talents and human resources. M&A is so important to corporations in all categories that the key integrative elements, differ from different field of industry, should be focused with more attentions. The development of worldwide internet industry is one of the momentum to improve the globalization and happening of M&A. There are many M&A cases which concerning about internet firms meanwhile. As we know, portal sites play great roles in internet world, that¡¦s the reason why the shifting of the portal site leading status is too important to ignore. This study is aimed to base on few components of strategy highly involve in internet, and two of companies (Yahoo! and Kimo) were selected for case research sample. Through reviewing the theories of connecting field information and the interview of the high rank staffs of case company and others, we find out the procedure of merge between Yahoo! and Kimo are smooth due to the motives and bilateral benefits of both are high level matched. Yahoo! want to capture Taiwan¡¦s most market share in short time in order to get the leading position of China, even the whole Asia , in the near future .Simultaneously, Kimo are seeking plenty of capitals form the world capital market. Also, Kimo try to concrete the portal site No.1 title in Taiwan and make more efforts to dance in the global stage. Both of them can give each other what they want easily, so Kimo become one part of Yahoo! Family smoothly. Finally, this study summarized their comments, and generated the suggestions of key factors of successful M&A for other study reference.