Sometimes Wordle works for me. Sometimes it don't. This example was generated from a very small sampling of my Plant of the Month articles.
Wordle is a tool for generating “word clouds” from text that you provide. It should also work from a RSS feed, but that was not cutting it for me tonight. The clouds give greater prominence to words that appear more frequently in the source text. And, it proves out that when one writes about the native plants of California, the name of the state will be very eminent.
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 your own desktop to use as you wish.