These databases will be useful to you in your research:
These books, along with many other titles, can be found in the Reference section of the Library. Click on the title to go to the record in the Library Online Catalog. Be sure to check the Circulating collection for books you can check out, too.
Here are some links that will help you as you research poetry and poetry explication. These are aggregate sites as opposed to sites devoted to individual poets.
Here are some sites that will assist in analyzing poetry:
Here are poetry and poetry-related associations and organizations that may be of interest to you: