It's kind of strange that 9/11 falls on a Saturday this year. In the past, it felt like everything should stop on 9/11, but it's Saturday so everything is already stopped.
What's even more strange is that the weather today is so similar to how it was three years ago.
The NY Times has a nice slide-show thing about remember 9/11. Check it out. You have to be a member to see it, but I'd recommend signing up anyway. It's free (!!!) and you can get the headlines sent to your e-mail every day.
Also, whenever I think of 9/11, I think of this journal entry I read back in 2001. It's really powerful, so I'll post that here, too:
For thou art with us.