Well, not sure if anyone missed my posts on this blog, but recently I moved myself onto a new blog. We have started a more generic data warehousing blog, which focusses on the actual database platform, rather than on tools. You will see items on new functionality, on best practices and other hopefully interesting things. It is also the home of the DW team's ideas and thoughts on the HP Oracle Database Machine.
You can find us at: http://blogs.oracle.com/datawarehousing/
While you are reading this, if you are interested in HP Oracle Database Machine, google Kevin Closson, he writes a nice blog on storage and architecture. Very interesting and very detailed stuff.