This website for public broadcasting offers information for many research topics and PBS is always broadcasting interesting topics, most recently: jazz, The Civil War, and baseball!
An excellent site for modern American poetry. To access the art that inspired the poetry go to www.philamuseum.org , click on to COLLECTIONS and then click on MODERN AND CONTEMPORARY ART. For the poems themselves and more biographical information on the poets go to www.americanpoems.com/poets