I get visitors from 2spots and zaparena. Though I’m not certain if I can use ad sense on that page. Are they allowed with adsense? Please tell me if it is against adsense tos or not?
As far as I know, google adsense has no issue with 2spots, wahoha or 2leep. There are lots of people using blogger networks like 2spots and never get any problems with that. So as soon as your blog or website content has an adsense policy that accept their tos, I think you are good to go.