Earlier, we scoffed at the idea that Facebook's traffic could have dropped in September. Compete.com — the poor man's ComScore, which makes its traffic data publicly available — just released September data that shows a similar drop. Maybe Facebook has peaked. More likely: since the kids returned to college, the free time they had to screw around on Facebook this summer has disappeared in favor of schoolwork and frat parties. MySpace, Orkut and Bebo were all down in September too. Amid the hysteria about Facebook's traffic dropping, everyone seems to have forgotten that Facebook traffic was down last September as well.