I found this interesting, especially in light of an earlier topic that made the front page about micro rewards and monetization: <a href="http://news.ycombinator.com/item?id=1097996" rel="nofollow">http://news.ycombinator.com/item?id=1097996</a><p>I find it interesting that through very simple rewards we can possibly drive not only conversion, retention, and use but also monetization.