May 5, 2014 at 9:37am ET by Greg Finn Last week, StumbleUpon released some important updates to their ad platform that will help marketers target more accurately, deliver to specific users and learn more about their audience. The new features have been rolled out to all advertisers, and the highlights are as follows: Delivery Options Advertisers will now have the option to “Spend ASAP” or “Spend Evenly. Continue Reading