This plugin registers Haiku Deck (
haikudeck.com ) as an oEmbed content provider and adds it to the whitelist, allowing all users to use this provider.
Here's more information about embeds for Wordpress
http://codex.wordpress.org/Embeds
Installing The Plugin
Extract all files from the ZIP file, making sure to keep the file structure intact, and then upload it to
/wp-content/plugins/. Then just visit your admin area and activate the plugin. That's it!
See Also: "Installing Plugins" article on the WP Codex