在设置关键词时经常听到一些站长说要重视长尾关键词，但究竟什么是长尾关键词呢?如何在众多长尾关键词中找到最佳关键词组合呢? 要了解长尾关键词，我们有必要了解一下在网络时代著名的长尾理论。长尾理论由美国人克里斯·安德森提出，他认为：由于成本和效率的因素，过去人们只能关注重要的人或重要的事，如果用正态分布曲线来描绘这些人或事，人们只能关注曲线的“头部”，而将处于曲
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