An interesting chart from Steve Sailer. (Note that he quotes from the Journal of Blacks in Higher Education, and refrains from editorial comment himself; the comments which follow the post, however, display no such reluctance.)
Virtually everyone who knows John finds him completely tactless and insufferably opinionated. He sees himself as refreshingly honest. That said, this blog is still an excellent way to kill time while putting off work. If you're a newcomer, you might find browsing through the older posts an amusing waste of time as well.