My A/R/T

Well, it seems I'm an A/R/T-ist now. After the earlier call for writers, I sent the nice people at PHP|Architect an e-mail telling them I was interested in writing an occasional article for them. Today, my first article in what is meant to be a monthly series of articles covering a variety of topics related to PHP has been published. The topic of the article, supporting open source projects, is something I've been wanting to write about for quite a while. I never really got around to really take the time to put down my ideas for this article. I felt A/R/T is a good platform for this article, and so took the time and attention to actually write the article. I am quite happy with it myself. Now... what will my second A/R/Ticle be about?