Leno and Letterman notwithstanding, what is the one thing Americans do more than Europeans every night? Browse the internet. Nate Anderson on internet traffic:

North American Internet traffic peaks at 11pm and drops off consistently all night; European traffic peaks at 7pm and plummets soon after.

Someone is staying up late and someone is going to be early.

The data certainly suggests that Europeans tend not to use the Internet for evening reading/entertainment/guild raids, while Americans are increasingly using it to watch video and play games in the evenings.

If it’s not going to be early, what is different about the respective browsing habits?

North Americans spend their evenings playing online games, watching porn, watching online movies and TV shows, and browsing the Web.

So, what are the Europeans doing?