If it is poetry you are looking for, try www.poetryoutloud.org
. On the right, they have a "poems" section. These poems are specially chosen for a national recitation contest sponsored by the National Endowment for the Arts and the Poetry Foundation.
Another great place is Poetry 180
. This is Billy Collins' site, sponsored by the Library of Congress. The poems are all contemporary pieces.
Additionally, I really enjoy Ted Kooser's site called American Life in Poetry
is very easy to work with, especially if you're looking for poems from the canon or those organized according to theme.