One of the XP features I (and Jessica) used a good bit was the (extensible) web publishing wizard. In particular, we used Gallery2′s support for it to publish albums directly from the windows shell (explorer).
http://codex.gallery2.org/index.php/Gallery2:Modules:publishxp
Unfortunately, this handy little thing has been removed from Vista. There’s no equivalent functionality in the shell, either. That sucks.
