TagCrowd
Create your own tag cloud from any text to visualize word frequency. TagCrowd is a web application for visualizing word frequencies in any user-supplied text by creating what is popularly known as a tag cloud or text cloud. It was created by Daniel Steinbock, a doctoral student in Design and Education at Stanford University. Today, text clouds are primarily used for navigation and visualization on Web 2.0 sites that employ user-generated metadata (tags) as a categorization scheme. (Flickr is a good example.)
