Nowadays for education 2.0 are many websites where you can make beautiful tag clouds with style :

My favorite is:

Tagxedo -turns words -- famous speeches, news articles, slogans and themes, even your love letters -into a visually stunning tag cloud, words individually sized appropriately to highlight the frequencies of occurrence within the body of text.

Wordle is a toy for generating “word clouds” from text that you provide. The clouds give greater prominence to words that appear more frequently in the source text. You can tweak your clouds with different fonts, layouts, and color schemes. The images you create with Wordle are yours to use however you like. You can print them out, or save them to the Wordle gallery to share with your friends.

Wordle: Elearning learning in education

Tagul clouds are not toys and designed to be used on blogs, web pages or any kind of sites as a replacement of ordinary tag clouds. Tagul is a web service that enables you to create gorgeous tag clouds. It is created by Alex, 27 years old entrepreneur and tech geek from Moscow, Russia. Each tag in Tagul cloud is linked with an URL and is “clickable” that enables visitors to use it for navigation. Also Tagul utilizes widely used flash platform (instead of less common java platform in Wordle) that is light weight (~50kb per cloud vs ~150kb) and stores the clouds on aCDN to deliver clouds to wide audience instanlty. Tagul has some features that Wordle doesn’t, like custom shapes selection and multiply fonts usage in one cloud.