The popularity of search engines vary from place to place. For example, if you're talking about Europe, Europeans prefer using Google compared to its competitor, Yahoo. As for Asia, each year has a different result. Sometimes, Yahoo dominates the search engine market while other times, it's Google. And with the arrival of the Microsoft search engine, Bing, surely there will be another fierce competition for the top spot in the search engine market. At this point, it's still difficult to predict how much this company will grow and how big its market share will be in a span of 5 years. We just have to wait and see.