I discovered Open Attribute a while ago and I use it almost every day. It’s a nice small plugin for your web browser (Chrome, Firefox & Opera). Every time a Creative Commons license is mentioned on a webpage, a small icon appears beside the URL. One click and you can simply copy and paste the license attribute to your clipboard and place it into your article. Apart from this, the plugin has the interesting effect of pointing out content you never before noticed was Creative Commons-licensed. Overall a very useful and time saving plugin for your browser and/or blog. (The plugin is also available for WordPress and Drupal).
For more information, please visit: http://openattribute.com