I Gracefully Sledgehammer

Language Log has a post about the most commonly used word in the English language:

Not surprisingly, first-person singular (FPS) pronouns are used at very high rates in everyday speech. Across thousands of natural conversations that we have recorded, transcribed, and analyzed, the word "I" is consistently the most frequently used word (averaging 4.73% of all words, compared with 0.56% "me" and 0.69% "my").

—James W. Pennebaker, "What Is 'I' Saying?"

The post starts with a link to an "I-Exam" that tests your knowledge or instinct of when I is used more often (I scored 8/10), and continues with further insight into when and how I is used in speech.

I think it would be of particular interest to the writers I have on my reading list right now.