Can someone explain to me why Google is formalizing this against Rap Genius? I really like their n-gram viewer of the New York Times wedding announcements. htt

Can someone explain to me why Google is formalizing this against Rap Genius? I really like their n-gram viewer of the New York Times wedding announcements. http://blog.visual.ly/rap-genius-new-project-visualizes-30-years-of-new-york-times-wedding-data/ http://blog.visual.ly/rap-genius-new-project-visualizes-30-y... I would be interested in learning what they have to say about NLP (Natural Language Processing) since they deal with language which is quite vernacular.