The bad news for Facebook is that Instagram has taken over as teenagers preferred social network. The good news for them is they own Instagram.

Which is just as well as it seems to also becoming a major player for content marketing.

In their 6 monthly (download free) report "Taking stock with teens" investment bank Piper Jaffrey, surveys 5,000 US teens on such things as fashion, video games, Apple products, and social networks.

If you're putting together a presentation on teenagers/millennials, get the report - it's full of very usable charts.

"We saw Instagram take the mantle for the most preferred social teen site," Piper Jaffray senior analyst and managing director Gene Munster said. "Interest level in Facebook went from 27% to 23%; Twitter 31% to 27%, Instagram 27 % to 30 %" in the past 6 months.

In another article we saw last week, we learn how Twitter-owned Vine and Instagram are battling it out. MediaPost's Video Insider Summit takes a closer look at how advertisers are using the two platforms, what works, and how they're measuring campaign success on these emerging tools.

Executive summary:

Facebook V Instagram: Some interesting factoids and a free downloadable report for those appealing to that most fickle of target audiences. And interesting as Instagram gets serious about serving up advertisements. The social network can use its photo app to continue to pull in advertising dollars around the desired demographic.

Read more here

Instagram V Vine: Read how GE, USA Today and Lowes are using these platforms for content marketing and how analysts are finding ways to draw a correlation between their use and sales.

Read more here