That's a really interesting thought. Is there any correlation between programming and writing abilities? (not that you were saying that) They're superficially dissimilar, but each is a creative endeavor that deals with formulating ideas and organizing them into a particular flow... It does seem that a number of great programmers are gifted writers, as well, but this could be blogger selection bias.

In my experience, a good coder is also a good writer and, if they get over the visceral fear of public speaking, a good speaker.