MatricaMedia is a monetization platform for publishers, not a place advertisers buy ads directly. It runs header bidding across display formats such as stickies, interstitials and parallaxes, and video formats such as in-stream, out-stream and rewarded, connecting publisher ad space to Google AdX and other premium demand sources.
How to open an account here, what it takes and the minimum spend.
Exchanges of the same type whose publishers are in the same markets, with the same formats, Best for and way in.