Global average time spent on social networking sites in February 2010 was 5.5 hours, up 2 hours from the previous year. Facebook was the top social network with 2.8 billion visits that month from 400 million users. It now commands 41% of all social media traffic. While Flickr has over 4.5 billion images, Facebook sees 2.5 billion photos uploaded per month, totaling 30 billion photos per year. YouTube serves 1 billion videos daily, costing $1 million in bandwidth, with a day's worth of content uploaded every minute.