www.ukbanners.com it is the site that i have found.It is a free website that takes charge promoting others websites and it helps to launch many of they;you show banner advertising for other UK websites that it´s completely free;also they can marketing new products.
Uk banners explain in the website how they work and the methods of payment if you want to buy an advertising campaign.You accept the budget, so if you choose the online payment,that is the fastest one, they can start working on your campaign at the moment in which you register all your information.in the site they also show us the companies for that they work
I have found this site very interesting because it is a easy and comfortable way of working with an advertising agency and you can do everything across internet so you don´t need to move of the office and it´s very important because the time costs.

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