The Rich Comments! plugin is by no means essential, and the code is still in its infancy. But its one of those plugins that I dig because it is ajaxy, unneccessary, and maybe even irrational given that we still don’t have a good way in WordPress, and the blogosphere more generally, to keep track of the comments we leave in various places. Despite all of this, check out the comments below for a demonstration of how this plugin allows for you to easily embed Flickr images and YouTube videos into the comments of your blog by simply grabbing their URL. You may even want to test it out.
Update: The Flickr part of this plugin, but you don’t use the static url that ends in jpg, just the URL where you find the image in Flickr, something like this: http://flickr.com/photos/umwcentennial/592828305/
The YouTube part of this plugin is not working, seems that the API is not translating very well, here is the error message I got on a video I embedded in a comment a few weeks back successfully:
Fatal error: Call to undefined function domxml_xmltree() in …/wp-content/plugins/wp-richcomments/services.php on line 61
I’ll have to look into this and report it to the plugin author. I guess if a plugin that depends on third-party services isn’t constantly updated it quickly becomes irrelevant.