nativenewyorker - 5:57 pm on Sep 26, 2005 (gmt 0)

AlexMiles said:

Sunday was my second best day ever, after three miserable days. I figured there was a click backlog and Google decided to credit it all on Sunday.

A possible explanation would be that people were focused on Hurricane Rita last week. After it passed and turned out to be less than expected, people went back to their normal routine. The higher revenue this weekend could just be the pent-up shopping demand from Tuesday through Friday.