How to influence your presence on the App Store

This week, UPM 3.1.2 came out and I noticed something interesting. According to www.appannie.com, my application was being featured in 122 countries on the App Store in the Productivity category.

I did a little search in order to find an explanation for this. Before the update, my app wasn't featured at all in the App Store all over the world. Meh. By having a mere 175 updates downloaded by users on the first day and nearly 600 hundreds the following day, this seems to generate enough traffic on the Apple servers to trigger something. Could this traffic be influencing Apple algorithm for select which apps to feature on each App Store category? If yes, maybe I should plan smaller but more frequent updates for my application! What is your experience on this matter?