Hi there, here is what I've done so far but I still have many more ideas to achieve.
These days I'm having tons of visitors and so far I have to say s9y has done great... When I was testing differente weblog systems to use a year ago I tought I'd have to work on one blog of my own, but I found s9y as an accident and I gave it a try. I've been using it ever since.
I love Serendipity Software and in my case the name is pretty well suited 'cause I found it by Serendipity... I think also s9y is way better than Movable Type or WordPress, most of all because of the plugin system.
If someone reading this is looking for a Weblog Software, use Serendipity, you will have no regrets.