http://coinhits.com (currently I use)
scam (i am not sure)
https://ppcadmedia.com/ (currently I use)
i haven't seen proof for a long time
https://www.adverti.io
http://admediatex.net/
https://token.ad
http://bitcoset.com
http://www.alexasurfing.com/

http://bitadvertz.com
http://bidvertiser.com
http://id.cpmaffiliation.com/ not yet
https://www.exoclick.com
if you don't have tricks, you won't pass the "first payment"
http://coinmedia.co
http://yesadvertising not yet