According to a 2008 study by InfoTrends, more than 200 marketers surveyed reported an improvement of 35% for multi-channel campaigns (print, e-mail, web landing page) over single channel print-only campaigns. A multi-channel campaign was also more effective than a single channel electronic approach. Personalization further improved campaign performance: marketers reported an average improvement of close to 50% for personalized multi-channel campaigns over print-only campaigns.