inasisi - 7:37 pm on Feb 3, 2005 (gmt 0)

Could this be related to the quarterly release of their financial data?

The thought process could be - I read how wonderful Google did in Q4 2004. Then I read that 95% of Google's revenue comes from these advertisements. Wait, let me see how these advertisements look, by searching on Google. Hmmmm... So if I click on these ads, Google gets more money. Let me check that out. Oh.. this ad also looks good, let me check that out also. And so on. You get the idea....