I've heard that the shorter the link structure, the better. Some people do just this
CODE
/%postname%/
So you get "http://www.somewebsite.com/post-title/". Gotta make sure every post has a unique name though...
A better one would be
CODE
/%post_id%/%postname%/
There's some leeway for post names here, and it looks something like "http://www.anotherwebsite.com/200/fantastic-title/"
I've got the same link structure as you, and I'm fine with it right now. Perhaps I could do YYYY/MM/postname or something...
I just had a quick look at your blog (hey you've updated your theme!). A suggestion? You might want to take out the "Meta" section. I've heard it's a sure-fire sign that the blog is new. Not helpful if you're looking to do pay per posts...
Uh, another suggestion? You might want to blend the colours of the AdSense blocks (and its links) with the colours of your theme. This way, the ad blocks look like they're part of your site/posts, and thus more likely to be clicked.