The original question from was a 16 year old who's been doing some basic CRUD apps, but is getting bored and wanted to move on to 'real' development. There were some good replies, but few went in to the depth of detail that I think beginners are even aware of. Granted, this might scare off some, but for others it might give them some ideas about what's possible and what's involved in professional web development. I know I'm going to leave off some topics, so feel free to add on!

He touches on topics ranging from version control to performance and even a mention of mobile development. Each section includes a brief summary of the topic and some have specific topics to check out to help narrow things down to the important parts.

A must read about OSS is the "Producing Open Source Software" written By Karl Fogel. One chapter covers nearly all problems that php Internals is experiencing.

No need to say that these rules should apply to IRC as well. You may think while reading the mailing lists that a certain level has been reached, what happens on IRC is even worst. Another chapter can be very interesting: Social and Political Infrastructure (and related). Mixing paid developers, volunteers or ambitious developers (as in need of an ego or career booster) is not an easy thing, but it should be possible (dreaming?).

Among the topics discussed in the chapter, Pierre mentions two - "nip rudeness in the bud" to keep things more civil and from escalating and to avoid private discussions about a project that everyone should be involved with.