The old '[email protected]' address apparently doesn't work any more; according to the New York Times, you can only send feedback to the President through the White House web site, and the process for doing so now requires visiting nine pages in succession (one of which asks you to specify whether you're writing in favor of or opposed to what they're doing).

Contrast, of course, to his opponents' campaigns... you know that Dean's people will see what you say if you post a comment to their weblog, and some of the campaign staff give out their own addresses.