Doug's Oracle Blog notes that Oraperf.com is showing signs of life, after a long and painful hiatus. This was a very useful site where you could upload statspack reports and have them analyzed for free run by Anjo Kolk, renowned Oracle performance pubah (a pubah is one level above a guru, and normal gurus are required to say: "Ahhh!
11g Optimizer Tool
Need another reason to consider 11g? How about the SQL Test Case Builder? You can read all about it over at the always-excellent Inside the Oracle Optimizer blog.
Delete or Truncate?
Both sound painful, but if you want a list of some of the less-encountered depths of the age-old question, see the Oracle Sponge Blog.