ExoClick is here over 5 years now and provides Adult and main stream advertising solutions and can monetize any web & mobile traffic. They have several advertising methods. So you can choose from: Text Ad, Banner Ad, Popunder, Instant Message, Interstitial, Direct Link, In-Video.
Navigation at their site is simple and its easy to set up your campain after you add your site. They are not so strict when accepting new publishers so even with lower traffic you would be accepted.Advertisers can have their ads placed on relevant websites according to the keywords used, and website owners can receive a share of the advertising revenue when their visitors click on these ads.
Payments are sent weekly every Monday and minimum is $20. Now they added also Payoneer payment plus they have Paypal and bank wire. I did research and there are mostly positive feedbacks about this company so it seems to be as a good Adsense alternative.