Perion, a startup that provides online publishers and app developers content monetization tools, acquired Undertone, a leader in high-impact, cross-screen advertising solutions for an amount of 180 million dollars. It must be noted that Perion has completed a number of acquisitions, including the photo app Smilebox for $32 million, SweetPacks for $41 million, ClientConnect for $660 million, Grow Mobile and MakeMeReach, a social media advertising platform.