Montreal-based Oboxmedia has signed an agreement with GumGum of Los Angeles to introduce its in-image advertising system in Canada. The system places contextual advertising over parts of images displayed on websites. According to the company, these ads currently reach approximately six million unique visitors in Canada per month. "With GumGum, we introduce a unique and captivating way of extending brand messages to contextually relevant images," said Christopher Rovny, vice-president of business development at Oboxmedia. "In addition to helping brands reach audiences predisposed to their message, the GumGum model gives us a completely new monetization stream and provides brands the opportunity to reach highly targeted mass audiences."