Not the rapper from Public Enemy, but Charles Darwin. 
Darwin's complete works are now online, including his notes and sketches, like the first time he suspected species were not static.
I was listening to NPR this morning and they were interviewing the site's director, who said they got 7 million hits in the first week, and 14,000 downloads of the origin of species on the first day (along with multiple server crashes).
PS - Evolution is a fact.