Online advertising is a form of promotion that uses the Internet and World Wide Web for the expressed purpose of delivering marketing messages to attract customers. Examples of online advertising include contextual ads on search engine results pages, banner ads, Rich Media Ads, Social network advertising, online classified advertising, advertising networks and e-mail marketing, including e-mail spam.

The benefit of online advertising is the immediate publishing of information & content that is not limited by geography or time. The most important is that the efficiency of advertiser's investment. It allows for the customization of advertisements, including content and posted websites. For example, dick, Yahoo! Search Marketing and AdSense enable ads shown on relevant web pages or aside of search results of pre-chosen keywords.

Advertiser (company or individual who posts ad for marketing) will make the ad using our ad making tool & submit the ad in our site for approval. Publisher (who displays ads in their websites) will add website & verify it in real time & create ad zone (a place in the website where ads will show) by putting a small JavaScript code in their website which will be generated automatically in the ad creation process. After that Adinbd will search related ads for that adzone & top paid ads will be displayed in that zone. If no ad found, Adinbd will show some default ads.

www.webdirbd.com is an example of how ads will be displayed in a website.