If you have developed a mobile App or are planning to do so, you should watch this great presentation by Todd Moore. I was able to attend the MoDev Meetup this Wednesday at TeqCorner and watch this first hand.
Todd talks about what drives installs and how do the different App Stores work. He also gives you a 101 course in App marketing. While most of the presentation is geared towards Apps, I also feel that a lot of what he says is valuable even if you are working on web development.
And for those of you who are not in the DC area, MoDev is going west later this year to the Bay area.