As of 2011, 1 in every 13 people on earth use Facebook. Half of them are logged in on any given day. 48% of 18 to 34 years old check their Facebook right after they wake up. The world is Obsessed With Facebook. Is your eBay store on Facebook yet? If not, be there now. Social Media Professional VAs at OBVA have been helping eBay stores market their listings on Facebook. It is all about better distribution of listings, more participation and better traffic to your store.