Used by Facebook to deliver a collection of commercial merchandise similar to real time bidding from third celebration advertisers. http://www.rybalka44.ru/forum/go.php?url=aHR0cDovL3d3dy5sb2NhbGhvbWVzZXJ2aWNlcHJvcy5jb20v/ZD13d3cuZ2xvYmFsYmVhdXR5LmNvbSUyRl9fbWVkaWFfXyUyRmpzJTJGbmV0c29sdHJhZGVtYXJrLnBocCUzRmQlM0RkaWt0eW9jZW5lLmNvbSUyNTJGaW5kZXgucGhwJTI1MkZGbG93ZXJfRGVsaXZlcnlfTG9uZG9uX1Vr