Poetry:

http://www.bartleby.com/verse/ - Has a searchable poetry database as well as links to online books and anthologies

http://www.poetry-archive.com - "Home of the World's Greatest Poems!"  Has poems listed by topic or by author

http://www.emule.com/poetry/works.cgi?author=69 - lots of classical poetry with many search features

http://www.poems.com/ - A "Poem of the Day" site that also has an archive of past "PotD"'s; features some very interesting modern poets and authors

http://etext.lib.virginia.edu/britpo.html - A list of online books of classical British poetry, with a few classical American poets sampled as well

http://capa.conncoll.edu/ - Contemporary American Poetry Archive

http://www.everypoet.com/index.htm - Some very good archives to classic and modern poets\

http://www.poetry4kids.com/ - A great resource that has an archive of humorous poems and suggestions on how to write your own poetry

Rhyme Zone - This site has some interesting materials such as information on Shakespeare, quotations, quizzes and a reverse dictionary.

Kristine George - This site contains a wealth of information on poetry. This site includes audio tapes of Kristine’s poems. Teachers share ideas to motivate poetry wring.