vBulletin and MediaWiki both use accesskeys (see w3 [w3.org]). They have p for previewing and s for submitting a post. I have found them to be quite nice features.
I've also noticed that quite often when I come to webmasterworld I am asked to log in. And after I log in I am not redirected to the original link that I clicked on. Since WW now requires cookies this is presumably doable?