In most of the industries you examine, you will find that some companies do better than most others. There is almost always a company that stands out. In the automotive industry, Toyota is considered a superior technology. In the pure online retailer, Amazon is the leader; in off-line retailers Wal-Mart, the biggest retailer on Earth, is the leader. In online music, Apple's iTunes is considered the leader of more than 75 percent of the market for music downloads, and in the related industrial sectors of the digital music player, the iPod is the leader. During a Web search, Google is considered to be the leader.
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