Here are some old threads that have seen recent discussion (feel free to jump in!):
Is longevity good for you?
The Problem with Non-Philosophers
Progress in Philosophy
Moral Goals vs. Side-Constraints
The Examined Life
Investing in Rational Capital
On your blog, anything goes?
Vigilantism and Civic Respect
P.S. You're also welcome to leave a comment here reminding me if you have an old question or objection somewhere that you would like me to address. (You can also ask new questions, for that matter.) I can't promise to spend any great amount of time on it, but I'll try to at least state my position on the issue, if not argue for it.