I'm consolidating my various blogs to a common blog, the Database Geek. There is a nice search feature and you can read the blog by category (Postgres, MySQL, Oracle, etc). I also plan to add an RSS feed for each category so you only read the topics that interest you. Stop by and check it out.
Any comments or feedback is appreciated.
I just posted an article on new features coming in Postgres 8.4. It's not detailed, just an overview of a few features I find to be very useful.