Facebook’s Instagram, which now has 300 million users, is launching self-service ad buying in worldwide markets around the world, starting with more than 30 new countries. Notably, ads will now include video spots up to 30 seconds. Instagram has been slow to sell ads in fear of alienating users. In 2013, it debuted a feature for editing and uploading 15-second videos, a duration that has remained the limit for video ads. “In addition to video ads up to 30 seconds, Instagram also introduced landscape (horizontal) photo and video ads for ‘a more cinematic feel’ and delivery and optimization tools to manage campaigns across Facebook and Instagram,” reports Variety.