Start an "all time most users in the last ten minutes" feature. Should be linked from the "users active now" page; not necessarily directly from the front page.
So far, the most I've seen is 15...
-YendorMike
What if the hokey pokey really is what it's all about? - Jimmy Buffett, June 20, 2002, Tinley Park
Most users ever online at once
- (Yendor)
- Oct. 7, 2002, 10:15:41 AM EDT