I don't remember which news site, but one of the major ones had to go to a basic text-only format for several hours.
i have a memory of trying to find out what was really happening sitting in one of my college's library's after an early morning class and trying to get anything to even respond, much less load. for some reason i remember 'relief' when i finally saw the CNN logo.
Fark and Metafilter held up, but they were text to begin with.
Internet video was interesting that day. Couldn't get any from the major sites because they were hammered. But I remember links would get passed along to some Quicktime clips on personal sites. No cell phone cameras, but small camcorders + Macs with firewire were popular enough that personal footage appeared quickly.