A simple Facebook bot is easy to make, but what makes up a useful Facebook bot?

Since Facebook opened up Messenger to bots two months ago, publishers have learned that it’s not hard to make a basic Facebook bot. But making a good, useful Facebook bot requires a bit more work, Lucia Moses writes. Moses talks to four publishers with Facebook Messenger bots about what they’ve learned and what’s worked for them on the platform: Fusion developed an “Emoji News” bots to tell the news in emoji (with a link to a full story), while TechCrunch is offering people story recommendations via Facebook Messenger based on their reading history.