| Apple Developer | Join the Developer's Connection. |
| Mac In-Touch | Daily dose of questions, problems, and news. |
| FAQ for OS X | Frequently asked questions and links to useful sites. |
| Resexcellence | Guide to the underpinnings of OS X. |
| Mac Update | ditto |
| Mac Observer | News and commentary. |
| Macworld | Look for the discussion boards. |
| Geek Culture | satire |
| Westwind | Lots of info. Look for the guide to the commandline instructions in Terminal. |
| Unix for Beginners | A free web-based tutorial. |