| Object-Oriented Programming and the Objective-C Language: A full-fledged manual to the Objective-C language extension. |
| A First Look at Objective-C: Article by Noah Roberts. |
| Categorically Speaking: Article from Stepwise on the merits of Objective-C categories, with examples. |
| Cetus Links - Objective-C: Links on Objects, Components and Objective-C. Provides links on tutorial, newsletter, books, software and libraries. |
| Cocoa: The Objective-C Programming Language: A detailed introduction to object-oriented programming in the context of the Objective-C programming language. |
| comp.lang.objective-c FAQ: Frequently asked questions about Objective-C. |
| Objective-C: At the Portland Pattern Repository Wiki. |
| Objective-C Beginner's Guide: Tutorial in text and code samples. English, Chinese. |
| Objective-C is Fun: A simple introduction to Objective-C, from the GNUstep project. By Adam Fedor. |
| Objective-C Resources: Directory Objective-C resources. |
| Optimizing Objective-C Code: Articles and samples to help you get maximum performance from your Objective-C code. |
| Programming in Objective-C: Some introductory notes and examples of Objective-C. |
| Programming: Objective-C: Includes tutorials, reference material and downloads. |
| Steve Dekorte's Objective-C page: Overview, language comparisons, history, compilers (platform chart and feature chart), project links. |