There are three different feeds you can subscribe to, which correspond to the different types of content. Links are short posts of one or two paragraphs which simply share an interesting link with brief commentary. Entries are longer prose pieces of at least 300 words. If you subscribe to everything, you'll get everything I publish, including approximately one entry and five links a week. Comments are not included in the everything feed. If you want to subscribe to comments, you can keep up with the conversation using the comments feed.
For all you stataholics (admit it) out there, Garret Murray has a nice new iPhone app called Ego. Through an impeccable UI, it allows you to keep up to date on your number of FeedBurner, Mint, and Twitter followers (Google Analytics support on its way). Plus, it’s free if you ignore the cost to your attention.