Regarding Adposting, work at home programme, Data entry programme

[de_ba]

Hello
Is there any one to show me how a website getting income by posting its ads ( do online, offline, adpasting work from home). I want to know from where the site making money to pay the person working as ad poster, online data entry works. Can I do the same type of work by creating a website? If any one know about the business please contact me. But before that please satisfy me what I want to know(what i put in this messeg earlier).