Apparently since November 2010... So 5 years. Those were the golden days :') Harry Potter fans were still waiting on the last two films *intense*, people like GemonkDruid/etc were still around, the clubs were buzzing... ah, nostalgia.
I've been through phases since then of taking 6-month long breaks, coming back for a couple of months, going away again... apparently it's on-season for me again. I don't know what it is, but toi always come back xD
I've been here since August 2008. And I must say, I agree with ThePrincesTale; those were the days. The site was active and YES the wait for those Harry Potter films were intense! But, there were friendships and bonds created with people from all around the world.
I have taken quite a few breaks from fanpop and I must admit, I believe things changed once the layout of the site did. But anywho, we are all here now!
And I say welcome! to those who have just arrived and I say good to see toi again, to the locals :)