More 9/11 Sites Are Disappearing
Thankfully blogs persist for the most part.
Purchased websites just don't last if the owner stops paying or gives up, for whatever reason.
I hope the Killtown data survives somewhere at least, I liked his work. Webfairy was more unreliable and made more extreme claims, though she had some useful videos. I think she used to actually host Killtown's work as a backup too, but that's obviously gone now.
And of course, there are so many 9/11 videos that are gone from Youtube, for whatever reason.