Google ads all of the sudden?

So now, on my site appeared some "ads by Google" and I'm wondering if it's possible to get rid of them. It also says now that in addition to my members online, there's a "google bot" online. I thought this might have something to do with when I said I wanted my site sponsored by google.

google bots and yahoo bots etc is to help your site thats how they get on google if they didnt come on they wouldnt really be on google when people search
The ads you can remove
go to admin> general > forum configuration you should see
Activate ads set to guests you cant make it so guests dont see without paying
and then there is Text ads activation (underlined) : click no

thanks!