They're not the same. Neobux you click ads to MAKE money. Paypal is used to store money/online banking thing. You don't make money on Paypal via ads.
I still would'nt compare it to Adsense though because that is run on websites, where as NeoBux all ads are run on their site and you click on them to see them: http://www.neobux.com/m/v/ <<< like that
lol you just now realised you have been using 'paypal' instead of 'adsense' lol. Dont worry it happens.
their pay per click amounts have gone down a lot, feel free to check it out if you like to sit on their site all day waiting for ads to pop up cos they won't pay you enough for 5 ads a day now as that's like now only 0.005 earned
I had always thought that the referrals would earn me a lot. They never did.... I wasted about $2 of the balance I had earned from clicking with rented referrals. I'm almost at minimum payout though!