Determining Vocabulary Within Content

An interesting tool was introduced to me by Larry Ferlazzo's blog today. It is designed to help a teacher create a vocabulary list for content that students will be reading. It is called VocabGrabber and is an add-on to the Visual Thesaurus.
Here is the way it is explained on the website:

VocabGrabber analyzes any text you're interested in, generating lists of the most useful vocabulary words and showing you how those words are used in context. Just copy text from a document and paste it into the box, and then click on the "Grab Vocabulary!" button. VocabGrabber will automatically create a list of vocabulary from your text, which you can then sort, filter, and save.

Select any word on the list and you'll see a snapshot of the Visual Thesaurus map and definitions for that word, along with examples of the word in your text. Click on the word map or the highlighted word in the example to see the Visual Thesaurus in action.

One more thing - I see that it has an icon that you can place on your toolbar, so that anytime you are on a website and you want the vocabulary, you can just click on the icon. I think this can prove to be a very useful tool.