because the people whos ads are on the banner pay them to put it on their site .
Companies pay answers.com to put their ads there in the knowledge that many people use this website and will therefore will see their ads.
Ads get put on your website or videos if it they attract a lot of views. If people click on the ad, you get some money. It can be a very small amount. The companies that put ads on decide on how much they pay. Some ads pay more than others. If a site gets a lot of hits, it will attract more ads and bigger ads and more expensive ads. If a site does not get many hits, then it won't get many ads.
To put an ad in a newspaper you will most likely pay by the column inch. Having your words in color or adding pictures to the ad will increase the price you have to pay.
usually from the computer or you can pay some one to do it for you
Once you get to a certain amount of subscribers you can register for a youtube "partnership", or maybe somebody like adsense will send you a message to put their ads on your videos and will pay you for each time somebody clicks on it.
If you buy and drink Pepsi, you indirectly pay for the ads.
you don't put the ads on , they just appear whilst being viewed
If you would like to turn off the ads, go to the related link below (Vibrant In-Text Advertising), click on the Disable tab, and there will be a link to put a cookie on your computer that should block them.
They put advertisements in that companies pay them for. These ads are supposed to get some people to buy the companies' products.
Yes. The ads to cut down belly fat or whatever lead you to sites that may give you the info that you are looking for, but they put viruses, cookies, malware, and spyware into your computer. Do not ever click on one unless it leads to a trusted or known-by-you site. They are a huge scam, and they can cost you lots of $$$ in computer repairs.
This is a programme that blocks unwanted ads. There are a number of those on this computer to save processing time. All ads are unwelcome on this computer.