I'm curious. You guys must be sitting on a ton of data and there are things I (and probably others here) would like to know about.
For example:
1. how many characters and words do the top percentile of users know? Maybe you could track some of these people down and interview them for the newsletter or something.
2. how much time do they spend on skritter?
3. what times of the day do most people seem to be on?
4. how long are sessions on skritter for different people? does this seem to be correlating with proficiency? does it correlate with how long they've been users?