A stunning pie-chart from Business Insider reveals interesting data; only five companies control 64 per cent of all online advertising spending! Google gets almost half of the total online ad spending worth $29 billion, which makes up 46 per cent of all online ad spend. Yahoo! controls $6 billion, Microsoft $2.2 billion, Facebook $1.9 billion and AOL $1.3 billion. The remaining $23 billion of total online spending on advertising is goes to everyone else.