So Facebook's gone live on the public market, and it's trading roughly around what everyone seems to have expected. But it's been a tough couple of weeks for the social media giant, which has come under some intense press scrutiny in the UK and further afield. The critics are all seeming to focus on its main revenue source: advertising. 

Google are the only advertising network that can surpass Facebook in sheer volume, and now WordStream.com have created a fantastic infographic taking an impressively deep look into how both companies fair up against one another in this field. Google come out on top, but Facebook are tailing behind by just a bit.