Yes, for the younger side of the tween set. There's an unfilled gap, though, between Club Penguin and Facebook, at least according to my eldest daughter, who went on Facebook the minute she turned 13, literally-- she sat there with the form filled out, the mouse hovered over the "submit" button as the clock struck midnight. For her, Club Penguin lost its shine around age 11, and I was a hard-ass in terms of sticking to the Facebook TOS-- according to her, all of her friends were already on Facebook, and I tend to believe her, as it took her less than 18 hours to rack up more "friends" than I have.

I'm 17 and grew up on Halo CE with xchat back around 2001 to 2003. A large portion of my teenage years (and most of my friends') was spent on Halo 2 as well...4chan was all the rage 2005-2008. Early 2008 until now it's been supplanted by HN and Reddit.

When I wasn't playing Halo, I spent a lot of time reading and editing Wikipedia, which might be something for kids to try out now. But Wikipedia's barrier to entry has risen significantly...one of the reasons I've quit the community there.

Eventually, it'll turn into a war between time spent on "productive" sites and activities, and time masturbating to porn, in my experience.

Children read 4chan? I can imagine >= 15, but really, younger than that?

That's a pretty disgusting thought.

4chan isn't just /b/ and /b/ isn't all of 4chan as the saying goes...

Most of my time there was on /g/ /w/ and a few other boards like /mu/, but I first got hooked because of the raids on Wikipedia. 4chan is a fascinating place, not just full of CP as some would think.

And Webkinz, but typed chat is unavailable to my kids. I have one around 12 years old now, and nearly all her friends have Facebook profiles (verified, usually wide open), so it's hard to explain why she can't have one yet. I don't really think there's anything terribly wrong with it; just another way to communicate, like cell phones and, much earlier, telephones. We let them use email, so I'm starting to question the barrier we put up ourselves to Facebook.