Google 最初以强大的搜索起家，那时候互联网主要还是一个信息载体，更接近一个电子化的媒质（当然已经有了BBS、Email和ICQ）。信息多到一定程度后，便成了人类信息和知识的一个超大图书馆。信息与知识多到一定程度之后，对互联网来说，找到的东西便不再重要，重要的是如何找到。Yahoo!式的人工检索被证明彻底落后，Google令我们饱尝其工具的强大，欣喜有加。 Google是一家技术公司（而非传统的提供信息的媒质公司），这是他们一直在强调的。技术公司以为人们服务来赢利，但是互联网的共享性使得它根本不可能向使用搜索引擎的互联网用户直接收取费用。这时候它必须由人们的搜索行为本身之外寻找收取费用的方式。 互联网搜索成为一种新的人类行为之后，人们获取信息的方式开始发生改变。这种改变必然会带来商机，于是Google AdWords应运而生。以电视系统作比喻的话，Google类似帮助电视信号到达的宽带提供商，然后它在页面右方提供了文字广告。歌华有线这样的电视信号提供商不能在电视节目上叠加广告是因为它的传送功能是电视接受者付费获得的。而Google是免费为你Pull过来你所需要的信息的，而且它的服务相当优秀。这个可以回答抱住google的后腿，拖拖 这个帖子的问题。
Google AdWords的一大特征是准确，因为它有很强的针对性，令广告无效成本大大降低，除了Google的逻辑分析外，还有就是它只有在点击之后才会向广告主收取费用。一个作广告的朋友曾痛苦地说，这个会改变整个广告体系。在这一行为上Google正是充分利用了互联网的交互性。这是现在的电视广播和纸媒体所不具备的。
这是令人可怕的。我们都知道Google"Do not be evil"的警句。但是我们更相信，力量会改变一个人，一个公司。那时候Google会拥有无与伦比的隐性权力。亚当·斯密说，权力产生腐败，绝对的权力产生绝对的腐败。这个规律应该亦适用于Google。这个字眼的意思便是数学中的无穷大。这是一个令人不寒而栗的隐喻。
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