Rap Genius scored $15 million in funding earlier this year, an investment to expand the community that loves to annotate rap lyrics.

Most writers don’t know it, but the site contains annotations for everything from 2Pac lyrics to F. Scott Fitzgerald prose to letters from Barack Obama to Chapter One of Genesis to Jay-Z lyrics.  The site has a simple goal: “Our aim is not to translate rap into nerdspeak,’ but rather to critique rap as poetry.”

Rap Genius co-founder Mahbod Moghadam introduced the site at Mediabistro’s Social Curation Summit this week. If you want to annotate your favorite lyrics, you need to sign up for a Rap Genius account. If you want to add a song, poem, speech or story to the database, simply click “Add a New Song” button. You have to chose a rap, rock, poetry or other genre.

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