The Safari Microformats plugin notifies you when the author of the website has published Microformats and allows you to easily import hCards and hCalendars in Address Book and iCal
Carnival is a free microformat parser for Safari. Download it, fire it up, and whenever a microformatted site is viewed in Safari, Carnival will glowgreen. Click on the icon to view the available data.
A special stylesheet to high-light hcard and hcal microformat entries.