PUBLIC MARKS with tags cost & google

Google is one of the few large companies that gets one fundamental rule of the Internet: Trying stuff is cheaper than deciding whether to try it. (Compare the cost of paying and feeding someone to do a few weeks of P* hacking to the full cost of the meetings that went into a big company decision.)

Don't overplan something. Just do it half-assed to start with, then throw more people at it to fix it if it works. Worked for every successful Google project from AdWords to Google Maps.

hear hear!

处理用户的数据方式、搜索广告&背景广告、人才之战、控制成本；雅虎公司所面临的最主要的挑战，就是要如何用更有针对性的方法，将丰富的信息转化成更多的收入。同时要使每月4.25亿访客能够重新回到网站，而不仅仅是为了搜索信息而来。

Google当前所拥有的计算机服务器超过了45万台，分布在全世界25个地区。而微软的服务器总数则为20万台，并且估计到2011年，这个数字将会变成80万台。因为在互联网上，稳定性及速度是影响用户体验的主要因素。