As a blogger trying to stay on top of my game, one thing I do is look through my blog stats. They give me an idea about what my audience likes, what brings new readers etc. I have a free account with Statcounter.com that gives some pretty robust figures.
Also, the local blogger stats also tells me where most of my traffic come from (Google and Blogger) as well as what they're searching for (Myne Whitman and Relationship questions). These stats help me decide which of my blog ideas to turn to posts and which to postpone, or simply discuss with friends and family.