Magnify.net has released a media search and upload tool in the form of a plugin for WordPress (and for Movable Type). The plugin requires WordPress 2.5 or above and the plugin lets the user search and embed video and images from a variety of networks into their posts. The plugin also provides the ability to shoot and publish videoblog posts using a webcam from within the WordPress and Movable Type platform and users can search and embed video from YouTube, AOL, Yahoo, BlipTV, Metacafe, DailyMotion, Clipsyndicate, Google Video, Veoh, Red Lasso, and more.
Install is relatively simple, though it involves more than just uploading one file. The plugin adds a small button to the post page and provides a search and embed interface for the various multimedia elements including a tab for webcam capture and embed. I would imagine a natural extension of this plugin in the form of enabling video comments for blogs like Seesmic and a screencast capture tool would be a very nice addition for the future. Read more reviews and opinions on the new plugin on Techmeme.
Disclosure: Weblog Tools Videos is built on the Magnify.net service