A pronoun is a word that takes the
place of a noun.
Examples: I, me, my, you, your, he, she,
it , us, we, they, them, his, her, their,
mine, our, myself, himself, herself, itself,
yourself, themselves, ourselves, who,
whose, whom, anybody, anyone,
everybody, nobody, someone,
somebody.
http://www.youtube.com/watch?v=yg9MKQ1OYCg
Grammar Rocks Pronoun Video