In a move intended to improve its video delivery and web services capabilities, Verizon (NYSE:VZ) announced an agreement to acquire EdgeCast, a provider of content delivery networks (CDNs). EdgeCast has more than 6,000 accounts with web brands for global media delivery and acceleration services.The EdgeCast acquisition is intended to strengthen Verizon Digital Media Services' ability to deliver content and site acceleration services to customers that include studios, broadcasters, retailers and enterprises. Verizon hopes to finalize the deal early next year.In November, Verizon bought cloud TV company upLynk, and in September it added TV Everywhere capability to its FiOS TV app.