I want to develop a Safari plugin using Xcode, and I want to access the bookmarks. What API should I use?
Since I\'m asking, are there any tutorials out there for plugin
There is no documented or Apple-supported way to create plug-ins for Safari.
That hasn't stopped many people creating add-ons, as you can see by browsing through Pimp My Safari.
Many of the plug-ins use SIMBL to load themselves into Safari, after which you can mess around with Safari's insides to do whatever you want. See the Armchair Guide To Cocoa Reverse Engineering.
One thing is for sure—it won't be a walk in the park!
Good luck =]