100s of bots viewing forums - how to stop?
 

I have removed the register forum so I no longer have 20k bots registering at my forums. However each day, all day I still have minimum 100 guests viewing the forums. Mind you these forums are empty, no threads...just a empty discussion forum. They're eating up my CPU usage on shared hosting so I need to stop these bots from accessing my forums. Any ideas? I have great SE ranking so I don't want to prevent google or yahoo from accessing my forum as I have been on top of results for about 2 years now.