11g New Features
A nice update on dynamic SQL enhancements in 11g at oracle-developer.net.
Performance
Several new items available from Richard Foote of late. More than most humans can comprehend on index compression, Part IV is here (and of course you can track back up the b-tree to the root article from there).
And a long and engaging article on Oracle diagnostic tools and their metaphors in life (with many links to other articles of interest along the way). The only thing I would add to the discussion is an aphorism from medical diagnostics that is my favorite reminder to myself when looking at a performance problem: 'When you hear hoof beats, think horses, not zebras'. In other words, no, it's not usually the freelists or the underscore parameters causing a problem, it's shaky SQL, or a database built on the sand foundation of a blatantly non-relational design.
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