WordPress.org

Wikipop is a WordPress plugin born from the desire to make witty references to obscure subjects in my blog posts - ones that might require a Wikipedia link to make any sense - without totally interrupting the flow of the post. The plugin adds a button to the WordPress visual editor that lets you create a link to Wikipedia from any text. Rather than leaving your site or opening the article in a new window, the link opens in a transient window on the same page. Basically it's like the difference between reading a footnote and an endnote.

To learn more, visit http://www.matthewhealy.net/wikipop-for-wordpress

Uses FancyZoom for jQuery by Steve Smith at http://orderedlist.com/