Facebook, a news source for many, once again finds itself as part of the news this week. First, Facebook deactivated the accounts of a young woman who was live-streaming her stand-off with police. She was later killed. In less serious social media news, Instagram, which is owned by Facebook, has added Snapchat-like features. You can now post pictures and they’ll disappear after 24 hours. And finally, Facebook has expanded its war on clickbait headlines. It’s our regular weekly web roundup with Xeni Jardin.