"Delete cookies on exit" still doesn't work properly and the author isn't responsive to emails.

2.8.3 is now available and it works with the latest version of Safari.

PithHelmet doesn't work since safari has been updated to 3.1, but "how to" from the link below makes it work.
http://tech.karbassi.com/2008/03/19/safari-31-and-pith-helmet/

advertisement is visual pollution.

I've tried all the Safari ad-blockers (SafariBlock, FloppyMoose, etc.) and have settled on PithHelmet. Just set the Ad Blocking Level slider to "Some" or "More" and that's it; you're basically ad-free from them on out.

Safari+PithHelmet is also much cleaner than OmniWeb with their built-in ad blocking e.g. it collapses ad space rather than graying it out (which is often as bad as the ad itself).

$10 well spent.

The correct name is PithHelmet, with only one word as in the description here but not the title for some reason.

Very useful, especially in conjunction with SurfRabbit, to de-clutter websites.

Does for safari what adblock plus does for firefox.
Great little addon.

if you use safari, you should be using this. great extension that gets rid of the spam.