copyright free poetry and GarageBand

Poetry is a wonderful structure against which to compose relevant sounds and music using GarageBand and other such applications. Three web searchable sites provided the full texts of work no longer under copyright: Project Gutenberg (http://www.gutenberg.org/wiki), the Open Content Alliance (http://www.archive.org/details/texts) and the Million Book
Project (http://www.archive.org/details/millionbooks/). Each can be searched for poetry or children's poetry to use in such projects.