If you are a guest (non member).. See this

[JaxBowlingGuy]

I noticed that there were some guest looking around the site... If you have made your way to this thread.. What are you waiting on.. Join us and add your imput to the threads that intrest you... Its free so what do you have to lose??? Hope to see you around... :-)

[bowl1820]

Most all of those guests you see are crawler and spider bot's from search engines (and some spam attacks a temping to enter). Not people looking at the site.
Like these-
baiduspider-123-125-66-85.crawl.baidu.com
ops8-r106.searchme.com
crawl-66-249-67-142.googlebot.com

Now we dont access to the "Currently Active Users:" screen,but that's where you can see that.

I'm a mod over at BT and have access there and it shows the IP address of who's logged on and if you resolve a the IP it shows what it is.