I'm trying to find a plugin that will find images based on the keywords or tags in my posts. For example, if the tags of my post are "ipod, apple, iphone" then this plugin would search Google images or something for images with those keywords and add them to my posts somehow. ???
You don't want to just take from Google images. Many are under copyright protection, but you may be thinking of this: http://wordpress.org/extend/plugins/zemanta/