Browsing vBulletin.org today for something interesting to check out and found a cool stats addon.

Cyb - Advanced Forum Statistics (for vb3.6x)
http://www.vbulletin.org/forum/showthread.php?t=122986

Basically, this vB product addon is a neat little community stats system and it couldn't be easier to install and configure.

Forum Statistics for:
-Latest Forum News
-Newest Members
-Top Posters
-Top Thread Starters
-Top Referrers
-Most Viewed Threads
-Hottest Threads
-Top Reputations
-Top Thanked
-Most Popular Forums
-Top Infractions
-Latest Classified Ads
-Latest Posts

This product is very flexible. You are able to choose which stats to show, disable some details to save page space, make several other functionality/make-up customizations...

See it in action within our forum.