I've been looking around for a good book on XCode, the development environment included with MacOS X. It's neat, but also huge and there is a lot of documentation available, but mostly it's still based on an older version of XCode and not 3.0 included with Leopard.

That's until now, because a great free online resource has been made available; Become An Xcoder. Although it starts right from the basics, you can just skip those chapters and get an update on the other bits.

Support Bruce Perens! And add your signature to this petition for accepting him as a member of the executive board of OSI.

For people who don't know him, or what he stands for, you can read up on him on wikipedia or his own web site. I know him as a former HP employee where he started Debian. He's also the founder of the LSB, busybox and a great evangelist of open source in general, up there together with ESR and RMS.

You can find him (very) active on certain discussion topics on slashdot, but he's always very willing to help anybody out. When I had some open source related problems myself, I turned to him for help and he didn't leave out cold. I can't say who else is so much available, that approachable in the OSS scene other then Bruce. He deserves your signature if you care about anything OSS related.