Selling your own advertising space is one of the most lucrative monetization methods. First and foremost because it enables you to cut out the middleman commissions and to determine your own rates. The most popular banner formats on the web are the 728×90 leader board, the 120×600 skyscraper, the 300×250 rectangle and the 125×125 button.

The downside of direct banner advertising is that you need to have a big audience to get qualified advertisers, and you will need to spend time managing the sales process, the banners and the payments.

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