IBM's Many Eyes continues to expand their already impressive lineup of visualization tools, most recently with a tag cloud option. Upload any text you like, and get an instant cloud showing frequency of single words or two-word combinations. I'm hoping for a modification to this that lets you chart frequency changes over time, like Chirag Mehta's cool presidential speeches analysis tool. But in the meantime, click on the image at right to see a quick cloud generated from the U.S. Constitution.
Self-proclaimed "YouTube for data visualization" Swivel has also beefed up its services slightly, first with the ability to embed images in graphs (mostly useless, but pretty), and now with a "Swivel It" bookmarklet that greatly simplifies the process of sending data from Google Spreadsheets to Swivel.
Links:
Many Eyes
IBM's Many Eyes App After One Month (Read/Write Web, March 5, 2007)
Swivel
Numbers...You're Swimming In Them (PDF; Fast Company, March 2007)
