I, myself, I, have an interesting quote about pronouns.

"One of the most interesting results was part of a study my students and I conducted dealing with status in email correspondence. Basically, we discovered that in any interaction, the person with the higher status uses I-words less (yes, less) than people who are low in status." --James Pennebaker

http://www.scientificamerican.com/article.cfm?id=the-secret-language-code

So many interesting implications.