What's working... and what's not

As I did last year, I thought I'd share some things I did this year and discuss their effectiveness.
Last year, my list looked like this:
This year, I experimented with several plug-ins and third-party add-ons to my site -- in part because I wanted to be able to speak intelligently about them here. Here are a few thoughts on how some of them have worked out:
What's working
What's Not Working
What's kinda working
Here's my list for this year:
