I’ve just released version 0.3 of my plugin WP DPLA (described more here). Anyone running this plugin is strongly encouraged to update immediately, as this update fixes (among a number of other, minor things) a major bug that was causing the DPLA API to get hammered. Boo Boone.
Many thanks to Phunk Gadoury for giving me a heads up about this issue.
Last week, I attended THATCamp CHNM, and I entered (and somehow managed to win) the Maker Challenge with a WP plugin that pulls related items from the DPLA API and displays them on your posts. I’ve just added the plugin to the wordpress.org repository: http://wordpress.org/plugins/wp-dpla.
Read more about the plugin at my THATCamp post: http://chnm2013.thatcamp.org/06/08/maker-challenge-wordpress-plugin-for-displaying-related-items-from-the-dpla/