How do the sites get ads?

I only know of admob.com many sites use them to get paid to put adverts on their websites so i'd say they're a genuine company

Hi there kisanchhantyal, Well from what I've heard and base from what I understand, websites get there ads if the site is popular. Owner of the site starts by making marketing strategy on how they can make their site popular, then when the site is popular that's the time when other will try to contact you and put ads on your site and get paid from the company, but I am not sure about how they will contact you I think it's for you to know since your planning to make a website then I suggest that you do some research on how to run a site and how to market it.. That's all I know hope that I'd help you by giving my ideas..