1) Is this SEO friendly, I mean if I put it on my web page, will the Google bot able to crawl that page? 2) Will it affect the rankings? 3) How much do u usually earn from per 1k visitors? 4) Does OGads only shows offers/etc for US visitors or all over the world? 5) If it only shows for US visitors, other visitors then can visit the web page without any ad or they will see a notice like this 'sorry no survey/offer is available for your country now, you can;'t visit this page'?