Go ahead. Tweet or FB this. Everyone else is

How much time do you spend on social networking sites? If you're like everyone else, nearly a quarter of the time you spend at an open Internet browser is dedicated to sites like Facebook and Twitter, according to new research by Nielsen.

That's up 7 percent from a year ago. Of course there's good reason why the slice of consumed by social networking is on the rise:

The numbers make it clear that people are spending more time on Facebook than any other website, even Google. Even though users may visit Google more times in a given day, the amount of time they spend there is minimal compared to the dozens of minutes, or even hours, spent on one social networking session.

Read the full story here.

I'd guess that for me, social networking is only 5 to 10 percent of the time I spend on the Internet.

How about you? Are you closer to Nielsen's "normal" Internet consumer?