I was just curious what you guys thought about the idea of double clicking on any word within a drupal site and having it take that word and run a search for the particular term throughout your site?

For example, say you have the following sentence:

You have foo, I have bar.

If you double click on foo, it will search for "foo" throughout your entire site (or whatever content types you specify). A real world example of this is on the NY Times site and I have found it very useful. Visit the following article and double click on any term within the article:

http://www.nytimes.com/2008/09/17/business/worldbusiness/17markets.html?hp

Please post your thoughts.