Where can I find a defintion for the term I've selected?

There are various resources--both in print and online--that you can use to develop your entry. I'll list a few below, which you can also find on our Canvas homepage:

The Princeton Encyclopedia of Poetry and Poetics (Fourth Ed.): the most thorough and up to date compendium of poetry and poetics (the study of poetry) to date, the Princeton Encyclopedia is available for digital reading through the Lilly Library's catalogue

. Hard copies can be found at Lilly and in the Center Hall Lounge. The book is big but essential. I recommend reading it hard copy so that you can browse its many entries. 

The Academy of American Poets (www.poets.org): a site for American poetry, with poets, famous poems, poetic forms, and poetic movements. This site and the Poetry Foundation are the best, most authoritative spots for poetry on the Internet.

The Poetry Foundation (www.poetryfoundation.org): the website for the Chicago-based publisher of Poetry, founded in 1912 by Harriet Monroe, it is now a major philanthropic institute for poetry with readings, events, prizes, and more. The website has a vast catalogue of free poetry and poet's biographies.

Poetry Daily (www.poems.org): a website featuring daily poems and hyperlinks to poetry reviews, essays on poetry, and news from the poetry world.

Verse Daily (www.versedaily.org): a daily poem offered free to its readers, drawn from new books of poetry (or new literary journals) published in the United States.

for better, for verse (https://prosody.lib.virginia.edu): an excellent online source for meter and prosody brought to you by the University of Virginia. See the Glossary of Terms for all manner of metrical terminology. You can even practice scanning metrical poems, beginning with the "Warming Up" level of difficulty.  

Do I need a bibliography to accompany my entries?

Yes and no. You need to acknowledge your sources, providing quotation marks around any language that isn't your own. You need to provide page numbers so that future scholars can follow your trail back into the text you cited. You also need to credit any sources that you're relying on heavily, even if you're not quoting directly from their text. But do you need a solidly formatted MLA bibliography for every entry you post? No.