If you look at the Website Award section of the manual, they give you the grading process for the judges from last year. The outline of the award basically explains what FIRST is looking for.
They want to see content, that's the key of any team website. They want the inside, human perspective of a team, and to see how this team interacts within both the FIRST community and their own local community. They want multimedia, pictures, video, flash animation is a nice bonus. They want up-to-date information, maybe even what the team is currently working on and how it's going.
Here's what I explained to my kids when they were looking for examples of websites:
One thing FIRST is big on is letting people know about the impact its had on teams. 358 has a list of where their graduates have gone and what they're considering for majors. That's awesome! They also have a schedule up as far as their upcoming events are concerned. They have a nice archive of the newspaper and other media spots they've had too. Seriously, the content of this site is awesome.
http://www.team358.org
I know this post is long, I'm sorry.
But I hope it was informative.
2005 Website Judge NYC