As I mentioned, I'm back to writing for Linux Weekly News. My latest, a summary of interesting developments at pgCon, is now up. Note that reading this article requires an LWN subscription; since they pay me, I don't want to give away the content for free. If you don't want to subscribe, wait two weeks and the article will be free.
I also wrote a summary of what's in the PostgreSQL 9.2 Beta for LWN, which does not require a subscription. Enjoy!