Sources of Cocoa documentation:
Apple’s Cocoa documentation.
Entry points for CocoaDev’s coverage of Apple’s Cocoa Frameworks
A wiki page linking to various pages dealing with the many facets of managing memory in your Cocoa app.
*CocoaBooks See for listing and reviews/comments on Cocoa Books.
Moved automatic documentation discussion to GeneratingHtmlDocs.
Anybody know of an obj-C source code formatter? You might be able to do something with (x)emacs - it has an objective-C editing mode and deals with indentation pretty well for other c-based languages. Might need to do a bit of hacking in lisp, though ;-(