The new White House website has the potnetial to create the online community we are use to these days. The keys for making the site communal and tribal (if you will) rests on two actions: 1) make it truly interactive, 2) keep it fresh (in both content and delivery). As of yet, it doesn’t appear to me you can interact beyond a “contact” form. Other ways for people to interact (with a live group of people on the white house side) is what will keep if relevant and used. Fresh content shouldn’t be a problem as long as the maintainers of the site stay current themselves.
Interactivity and fresh content–good ideas for your site whether your website is about making widgets or leading the free world.