We all know Twitter is a place where you can follow the musings of just about anyone - in 140 characters or less.
But terror groups are increasingly using it too. The question now is whether Twitter is helping to self-radicalize people like the Boston bombing suspects.
Dan Rivers is OutFront in the investigation.
Facebook founder Mark Zuckerberg is hosting his first political fundraiser for Republican New Jersey Gov. Chris Christie.
The event will take place February 13 at Zuckerberg's home in Palo Alto, California. A Facebook spokeswoman said Zuckerberg appreciates education reform efforts made in New Jersey.
"Mark and (his wife) Priscilla have worked closely with Governor Christie on education reform in the Newark school system," Sarah Feinberg said. "They admire his leadership on education reform and other issues and look forward to continuing their important work together on behalf of Newark's school children. Mark and Priscilla are happy to host him at their home to support his re-election."
OutFront tonight: McKay Coppins – Buzzfeed reporter who broke this story and Joe Lockhart – Former Clinton White House Press Secretary and Former Communications VP of Facebook.
All Things Digital reports Instagram was accessed by 7.3 million users in August, compared to Twitter's 6.9 million. What's more, Instagram's users were also more engaged with the average user spending 87 more minutes on the site than those on Twitter.
Now, Twitter is still winning the unique visitor battle, 29 million to 22 million. But it's a huge milestone for the 2-year-old Instagram which has to date shared more than 5 billion photos.
Which brings us to tonight's number: 6 BILLION.
That's how many photos are uploaded to Facebook every single month.
Filed under: Social Media
Erin Burnett OutFront airs weeknights at 7 p.m. ET. Designed to showcase Erin's unique style--casual, smart, and confident--OutFront stays ahead of the headlines, delivering a show that's in-depth and informative.