Spying on your usersI recently set up both Feedburner and Google Analytics on my blog, and Google Analytics on my lyrics search website thingy. Feedburner is a thing which tells you how many people are using your RSS/Atom feeds, while Google Analytics lets you see where your users come from, what browsers they are using, and so forth. Here's an example. Great fun, altogether, even if not entirely useful. If you look to your right, you can even see how many subscribers there are to my blog; it varies a bit, so far peeking at 38. Imagine! 38 people reading this rubbish!
I also got Damien Mulley using Feedburner; he's got about 10 times as many readers as me, though. He's one of these very blog-gy people though; he ran that Irish Blog Awards thingy.
Both services are free; for the Google one you need an invitation, but just fill in your email address and they'll send you one in a few days.