Social Pro Daily Happy Holidays From Twitter, Periscope Twitter and Periscope are feeling the holiday spirit. By David Cohen December 22, 2016 Twitter and Periscope are feeling the holiday spirit. David Cohen david.cohen@adweek.com David Cohen is editor of Adweek's Social Pro Daily. Recommended articles {"channel":"elasticpress","title":"Recommended","post_types":["post","page"],"lineup_id":"54851","since_qty":30,"since_time":"d","until_qty":0,"until_time":"m","q":"","num_posts":0,"vertical":"performance-marketing"}