You can create bitcoin online auction, classified ads, paid forum, etc on your website.
https://gourl.io/bitcoin-payment-gateway-api.html#p7
GoUrl Bitcoin/Altcoin Gateway allows you to provide direct payments between your website users (userA pay to userB, userB pay to userD, etc ), your website will display payment form and will receive confirmation every time notice of whether a payment is successful or not. Each of your users will see their payment statistics on gourl.io also. All will be in automatic mode.
Also you can use affiliate programs on your website -
0.50% payment commission from each payment to you as the website owner.
Screenshot -
https://gourl.io/bitcoin-payment-gateway-api.html#p7