The top search returns for the phrase 'Black girls' on Google link to sexist and racist websites, including highly explicit pornography.

From 2010, US academic Safiya Noble conducted a series of experiments that revealed that Google searches on Black girls, Latina girls, Asian girls returned pornography, hypersexualized content, and other inappropriate links. 

Conversely, search returns for 'white girls' were much less controversial. 

Noble surmised that search algorithms reflect the racist and sexist biases of their designers, developers and operators. 

She also contended that Google is reluctant to acknowledge the problem or update its algorithms in a meaningful manner lest it disrupts the advertising revenue generated alongside the search returns, instead preferring to hide behind its opaque 'black box' algorithmic systems.