In the same way, Sergey Brin and Larry Page initially resisted supporting their search engine with advertising: "The issue of advertising causes enough mixed incentives that it is crucial to have a competitive search engine that is transparent and in the academic realm, " they wrote in 1998.

WSJ: Matt Ridley on Web Profits, Web Sharing and the Facebook IPO | Mind & Matter

"The search for answers must be transparent and non-discriminatory, " he says.

CNN: Inside Krung Thai

The Met Police were urged to be more transparent about how and why they use their stop and search powers.

BBC: Riot report reveals '500,000 forgotten families'