They discovered that 6-second ads were the optimal length for the platform— and they’re not the only online medium encouraging social media advertisers to create shorter ads. YouTube and Fox also are pushing the 6-second video format. What Does It Mean for Marketers? For companies looking to boost their Facebook marketing strategy, this is a momentous change in perspective. Most advertisers still believe in the 15 or 30-second spot since it allows more time to get their message across.

