"Delay is natural to a writer. He is like a surfer—he bides his time. Waits for the perfect wave on which to ride in. He waits for the surge (of emotion? of strength? of courage?) that will carry him along." (E.B. White, The Paris Review Interviews, 1969)
An InfoWorld blog entry on the ACLU pizza meme describes how one might measure the effectiveness of a "meme" (complete with bar graph). It is pretty unsatisfying (one step removed from web counters), but helps to illustrate how "memes" flow through blog space.