According to the website, it is currently in beta for a limited time. You can use all the features in the product for the time being. After the beta period, they will decide if some free functions will possibly be restricted in its use. So do be prepared for the site to change in the future. Keep an eye on the site for more information.
Read more http://www.whiteboardblog.co.uk/2012/12/make-word-clouds-with-typoeffects/
a tag cloud creator which, when putting your text in the box, also brings up Google Images, the Visual Thesaurus, and pulls out the most relevant parts of the text from the tag cloud