Welcome to Tagedo:
Word Clouds with Style
"Tagxedo turns words -- famous speeches, news articles, slogans and themes, even your love letters -- into a visually stunning word cloud, words individually sized appropriately to highlight the frequencies of occurrence within the body of text."
Start with a URL, Twitter ID, Del.icio.us ID, or enter text to generate a word cloud. Choose from a variety of cloud shapes, text fonts, colors, and themes to personalize your project. Basic features are free, pro accounts are available.
Wordle: Beautiful Word Clouds
"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."