suggestions

Average Level?

Total exp / total players
Put that in your level array or whatever.
:)

I can't compute this very easily, believe it or not. Your level isn't actually stored in the database, only the amount of experience you have.

So while I could scan the entire database (not out of the question, some of the stats already do this), convert each exp value to a level, and take the average of that, I'm going to try to keep the stats to things that can be computed within the database for now.

And I don't think converting average exp to a level is the same as average level.

Don't you have a function getting peoples levels?
get_level(10000); // exp

Why wouldn't avg exp equal avg level?

What about...
$get = mysql_fetch_array(mysql_query("SELECT get_level(AVG(exp)) as `avglevel` FROM `users`"));

echo $get['avglevel'];

\o/

This won't work, and this is why:

A level 2 bot has 390 xp, a level 100 bot has 762,677,619 xp. Their average level is of course 51, while their average xp is 381,339,004.5, which is equal to a level 90 bot.

SELECT AVG("SELECT get_level(exp) as `lvl` FROM `user`") as `finallvl` FROM `users`");
echo $get['finallvl'];

?

I suppose I could implement get_level() as a MySQL UDF, but this would be pretty low priority. I'm mostly focusing on bug fixes and major features at the moment.

I'm not expecting it today or nothing endy poo. :)

How about something like "Most online"?

To much work says Ender.