More millennials than you might think are abstaining from social media, though Facebook– thought by some to be losing younger users to newer social networks—actually boasts significantly more engaged, younger users than newer outlets like Snapchat, Instagram, and Pinterest. That’s according to new research we commissioned from Ipsos, an independent market-research company, to learn how people aged 20-35 are actually using social media today, and to glean some lessons for marketers trying to reach this demographic on the Internet. The research, which surveyed more than 1,000 people in this age group, also found some engagement issues with younger users of Twitter, a company in the news lately for weak revenue growth and a CEO change. Broad assumptions are often made about millennials and their use of social media—namely, that they use it a lot. Many obviously are. But our independent national survey, conducted in August and sampled and weighted to be reflective of the broader American population, shows not all young adults are selfie-stick carrying share-a-holics who only engage via Instagram and Snapchat. This means marketers, political pollsters and others looking to engage these young consumers online would be making a mistake by putting all their eggs in one basket. Here are five conclusions we drew from our survey with implications for people trying to reach millennials online.